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Del Giudice N, Voegeli G, Strub JM, Heinrich B, Douce L. Ionic Liquid Crystals Based on Loop-Shaped Copper(I) Complexes. Inorg Chem 2024; 63:6103-6110. [PMID: 38497643 DOI: 10.1021/acs.inorgchem.4c00728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
This paper describes the synthesis and characterization of liquid crystals based on loop-shaped cationic copper(I) complexes of a multidentate ligand. Their synthesis involves the one-pot reaction of an alkyloxy-decorated pyridine-aldehyde unit with a diamine (2,2'-(ethylenedioxy)bis(ethylamine)) spacer to form in situ a pyridine-imine quadridentate-N4-donor ligand, L, which is able to chelate a copper(I) center associated with various noncoordinating anions. All of these compounds were characterized by NMR, IR, and electronic absorption spectroscopy, and more particularly by X-ray diffraction and mass spectroscopy, enabling unambiguous assignment of the [ML]+ mononuclear nature of the cationic components. The presence of six flexible alkyloxy chains at each end of the ligand associated with the rigidity of the core complex causes induction of a liquid crystal state with a columnar self-organized architecture, where the columns are packed in a hexagonal two-dimensional network.
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Affiliation(s)
- Nicolas Del Giudice
- Département des Matériaux Organiques, Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504), Université de Strasbourg/CNRS, 23 Rue du Loess, F-67000 Strasbourg, France
| | - Guillaume Voegeli
- Département des Matériaux Organiques, Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504), Université de Strasbourg/CNRS, 23 Rue du Loess, F-67000 Strasbourg, France
| | - Jean-Marc Strub
- LSMBO, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, 67000 Strasbourg, France
| | - Benoît Heinrich
- Département des Matériaux Organiques, Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504), Université de Strasbourg/CNRS, 23 Rue du Loess, F-67000 Strasbourg, France
| | - Laurent Douce
- Département des Matériaux Organiques, Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504), Université de Strasbourg/CNRS, 23 Rue du Loess, F-67000 Strasbourg, France
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2
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Brouillac C, McIntosh N, Heinrich B, Jeannin O, De Sagazan O, Coulon N, Rault‐Berthelot J, Cornil J, Jacques E, Quinton C, Poriel C. Grafting Electron-Accepting Fragments on [4]cyclo-2,7-carbazole Scaffold: Tuning the Structural and Electronic Properties of Nanohoops. Adv Sci (Weinh) 2024; 11:e2309115. [PMID: 38251412 PMCID: PMC10987112 DOI: 10.1002/advs.202309115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Indexed: 01/23/2024]
Abstract
Since the first applications of nanohoops in organic electronics appear promising, the time has come to go deeper into their rational design in order to reach high-efficiency materials. To do so, systematic studies dealing with the incorporation of electron-rich and/or electron-poor functional units on nanohoops have to be performed. Herein, the synthesis, the electrochemical, photophysical, thermal, and structural properties of two [4]cyclo-2,7-carbazoles, [4]C-Py-Cbz, and [4]C-Pm-Cbz, possessing electron-withdrawing units on their nitrogen atoms (pyridine or pyrimidine) are reported. The synthesis of these nanohoops is first optimized and a high yield above 50% is reached. Through a structure-properties relationship study, it is shown that the substituent has a significant impact on some physicochemical properties (eg HOMO/LUMO levels) while others are kept unchanged (eg fluorescence). Incorporation in electronic devices shows that the most electrically efficient Organic Field-Effect transistors are obtained with [4]C-Py-Cbz although this compound does not present the best-organized semiconductor layer. These experimental data are finally confronted with the electronic couplings between the nanohoops determined at the DFT level and have highlighted the origin in the difference of charge transport properties. [4]C-Py-Cbz has the advantage of a more 2D-like transport character than [4]C-Pm-Cbz, which alleviates the impact of defects and structural organization.
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Affiliation(s)
| | - Nemo McIntosh
- Laboratory for Chemistry of Novel MaterialsUniversity of MonsMonsB‐7000Belgium
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)UMR 7504CNRS‐Université de Strasbourg23 rue du Loess, BP 43, Cedex 2Strasbourg67034France
| | | | | | | | | | - Jérôme Cornil
- Laboratory for Chemistry of Novel MaterialsUniversity of MonsMonsB‐7000Belgium
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3
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Hemmerle A, Aubert N, Moreno T, Kékicheff P, Heinrich B, Spagnoli S, Goldmann M, Ciatto G, Fontaine P. Opportunities and new developments for the study of surfaces and interfaces in soft condensed matter at the SIRIUS beamline of Synchrotron SOLEIL. J Synchrotron Radiat 2024; 31:162-176. [PMID: 37933848 PMCID: PMC10833424 DOI: 10.1107/s1600577523008810] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 10/08/2023] [Indexed: 11/08/2023]
Abstract
The SIRIUS beamline of Synchrotron SOLEIL is dedicated to X-ray scattering and spectroscopy of surfaces and interfaces, covering the tender to mid-hard X-ray range (1.1-13 keV). The beamline has hosted a wide range of experiments in the field of soft interfaces and beyond, providing various grazing-incidence techniques such as diffraction and wide-angle scattering (GIXD/GIWAXS), small-angle scattering (GISAXS) and X-ray fluorescence in total reflection (TXRF). SIRIUS also offers specific sample environments tailored for in situ complementary experiments on solid and liquid surfaces. Recently, the beamline has added compound refractive lenses associated with a transfocator, allowing for the X-ray beam to be focused down to 10 µm × 10 µm while maintaining a reasonable flux on the sample. This new feature opens up new possibilities for faster GIXD measurements at the liquid-air interface and for measurements on samples with narrow geometries.
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Affiliation(s)
- Arnaud Hemmerle
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Nicolas Aubert
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Thierry Moreno
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Patrick Kékicheff
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
- Institut Charles Sadron, Université de Strasbourg, CNRS UPR22, 67034 Strasbourg, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg, CNRS UMR7504, 67034 Strasbourg, France
| | - Sylvie Spagnoli
- Institut des NanoSciences de Paris, UMR 7588 CNRS, Sorbonne Université, 75252 Paris Cedex 05, France
| | - Michel Goldmann
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
- Institut des NanoSciences de Paris, UMR 7588 CNRS, Sorbonne Université, 75252 Paris Cedex 05, France
| | - Gianluca Ciatto
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Philippe Fontaine
- Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
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Kaneko K, Mandai A, Heinrich B, Donnio B, Hanasaki T. Synthesis and mesomorphic properties of "side-on" hybrid liquid crystalline silsesquioxanes. Soft Matter 2023; 19:9115-9122. [PMID: 37990586 DOI: 10.1039/d3sm00801k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Novel hybrid silsesquioxane-based liquid crystalline derivatives with varied lengths of spacers and tails have been synthesized by hydrosilylation reactions of octakis(dimethylsiloxy)silsesquioxane and side-on mesogens via a platinum catalyst. The thermal behavior of three types of silsesquioxane-based liquid crystals (LCs), differentiated by the molecular structure of mesogens, was investigated by differential scanning calorimetry (DSC) and polarising optical microscopy (POM). Temperature-dependent small and wide-angle X-ray scattering was used to verify liquid crystalline phases, revealing that the silsesquioxane-based derivatives formed hexagonal columnar and nematic mesophases, and the effect of the molecular structure of the mesogens and the spacer length on the formation of LC phases is discussed. This investigation demonstrated that the choice of the "side-on" attachments plays a crucial role in enhancing the emergence of the nematic phase.
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Affiliation(s)
- Kosuke Kaneko
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Atsuhiko Mandai
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Tomonori Hanasaki
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
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5
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Shaya J, Ribierre JC, Correia G, Dappe YJ, Mathevet F, Mager L, Heinrich B, Méry S. Control of the Organization of 4,4'-bis(carbazole)-1,1'-biphenyl (CBP) Molecular Materials through Siloxane Functionalization. Molecules 2023; 28:molecules28052038. [PMID: 36903284 PMCID: PMC10003964 DOI: 10.3390/molecules28052038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
We show that through the introduction of short dimethylsiloxane chains, it was possible to suppress the crystalline state of CBP in favor of various types of organization, transitioning from a soft crystal to a fluid liquid crystal mesophase, then to a liquid state. Characterized by X-ray scattering, all organizations reveal a similar layered configuration in which layers of edge-on lying CBP cores alternate with siloxane. The difference between all CBP organizations essentially lay on the regularity of the molecular packing that modulates the interactions of neighboring conjugated cores. As a result, the materials show quite different thin film absorption and emission properties, which could be correlated to the features of the chemical architectures and the molecular organizations.
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Affiliation(s)
- Janah Shaya
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg University, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
- Department of Chemistry, College of Arts and Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Jean-Charles Ribierre
- Service de Physique de l’État Condensé, CEA CNRS UMR 3680, Université Paris Saclay, 91191 Gif-sur-Yvette, France
| | - Gabriel Correia
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg University, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - Yannick J. Dappe
- Service de Physique de l’État Condensé, CEA CNRS UMR 3680, Université Paris Saclay, 91191 Gif-sur-Yvette, France
| | - Fabrice Mathevet
- Institut Parisien de Chimie Moléculaire (IPCM), CNRS, Sorbonne University, 4 Place Jussieu, 75005 Paris, France
- Center for Organic Photonics and Electronics Research (OPERA), Department of Applied Chemistry, Kyushu Universty, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
| | - Loïc Mager
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg University, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg University, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
- Correspondence: (B.H.); (S.M.)
| | - Stéphane Méry
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg University, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
- Correspondence: (B.H.); (S.M.)
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6
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Heinrich B, Kékicheff P, Hemmerle A, Fontaine P, Martel D. Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour. Phys Chem Chem Phys 2023; 25:5648-5655. [PMID: 36734112 DOI: 10.1039/d2cp05181h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Grazing incidence wide angle X-ray scattering measurements on aligned titanium oxide nanowires displaying anisotropic optical-electronic properties are carried out. Elemental and thermal analyses provide a chemical composition corresponding to H2Ti3O7·nH2O with n ≈ 1 while the crystallographic data indicate a monoclinic cell with a lamellar substructure. Cell parameters are close to those of H2Ti3O7 notwithstanding a doubling of the lattice in the layer plane. A comparison of the band gap energy values and the electronic transition modes between the two polymorphs displays differences that could be ascribed to the structural variation.
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Affiliation(s)
- Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France
| | - Patrick Kékicheff
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, 91190 Saint-Aubin, France
| | - Arnaud Hemmerle
- Synchrotron SOLEIL, L'Orme des Merisiers, 91190 Saint-Aubin, France
| | | | - David Martel
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
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7
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Kartal S, Rogez G, Robert J, Heinrich B, Boudalis AK. Cover Feature: A Magnetocaloric Glass from an Ionic‐Liquid Gadolinium Complex (ChemPhysChem 12/2022). Chemphyschem 2022. [DOI: 10.1002/cphc.202200356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Seda Kartal
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra) Université de Strasbourg 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Guillaume Rogez
- Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 67000 Strasbourg France
| | - Jérôme Robert
- Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 67000 Strasbourg France
| | - Benoît Heinrich
- Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 67000 Strasbourg France
| | - Athanassios K. Boudalis
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra) Université de Strasbourg 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
- Institut de Science et d'Ingénierie Suparamolaiculaires – ISIS 8 allée Gaspard Monge, BP 70028 67083 Strasbourg Cedex France
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Cotin G, Heinrich B, Perton F, Kiefer C, Francius G, Mertz D, Freis B, Pichon B, Strub JM, Cianférani S, Ortiz Peña N, Ihiawakrim D, Portehault D, Ersen O, Khammari A, Picher M, Banhart F, Sanchez C, Begin-Colin S. A Confinement-Driven Nucleation Mechanism of Metal Oxide Nanoparticles Obtained via Thermal Decomposition in Organic Media. Small 2022; 18:e2200414. [PMID: 35426247 DOI: 10.1002/smll.202200414] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Thermal decomposition is a very efficient synthesis strategy to obtain nanosized metal oxides with controlled structures and properties. For the iron oxide nanoparticle synthesis, it allows an easy tuning of the nanoparticle's size, shape, and composition, which is often explained by the LaMer theory involving a clear separation between nucleation and growth steps. Here, the events before the nucleation of iron oxide nanocrystals are investigated by combining different complementary in situ characterization techniques. These characterizations are carried out not only on powdered iron stearate precursors but also on a preheated liquid reaction mixture. They reveal a new nucleation mechanism for the thermal decomposition method: instead of a homogeneous nucleation, the nucleation occurs within vesicle-like-nanoreactors confining the reactants. The different steps are: 1) the melting and coalescence of iron stearate particles, leading to "droplet-shaped nanostructures" acting as nanoreactors; 2) the formation of a hitherto unobserved iron stearate crystalline phase within the nucleation temperature range, simultaneously with stearate chains loss and Fe(III) to Fe(II) reduction; 3) the formation of iron oxide nuclei inside the nanoreactors, which are then ejected from them. This mechanism paves the way toward a better mastering of the metal oxide nanoparticles synthesis and the control of their properties.
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Affiliation(s)
- Geoffrey Cotin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Francis Perton
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Céline Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Gregory Francius
- Université de Lorraine and CNRS, LPCME UMR 7564, Nancy, F-54000, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Barbara Freis
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Benoit Pichon
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Jean-Marc Strub
- Université Strasbourg, CNRS, IPHC, Laboratoire de Spectrométrie de Masse BioOrganique, UMR 7178, Strasbourg, F-67000, France
| | - Sarah Cianférani
- Université Strasbourg, CNRS, IPHC, Laboratoire de Spectrométrie de Masse BioOrganique, UMR 7178, Strasbourg, F-67000, France
| | - Nathalie Ortiz Peña
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Dris Ihiawakrim
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - David Portehault
- Sorbonne Université, CNRS UMR 7574, Collège de France, LCMCP, 4 place Jussieu, Paris cedex 05, 75252, France
| | - Ovidiu Ersen
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
| | - Amir Khammari
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Matthieu Picher
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Florian Banhart
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
| | - Clement Sanchez
- Sorbonne Université, CNRS UMR 7574, Collège de France, LCMCP, 4 place Jussieu, Paris cedex 05, 75252, France
- USIAS Chair of Chemistry of ultradivided matter, University of Strasbourg Institut of Advanced Study, Strasbourg, 67000, France
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg, F-67034, France
- Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, Strasbourg Cedex, F-67083, France
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9
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Kuppusamy SK, Mizuno A, García-Fuente A, van der Poel S, Heinrich B, Ferrer J, van der Zant HSJ, Ruben M. Spin-Crossover in Supramolecular Iron(II)-2,6-bis(1 H-Pyrazol-1-yl)pyridine Complexes: Toward Spin-State Switchable Single-Molecule Junctions. ACS Omega 2022; 7:13654-13666. [PMID: 35559184 PMCID: PMC9088905 DOI: 10.1021/acsomega.1c07217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/21/2022] [Indexed: 05/27/2023]
Abstract
Spin-crossover (SCO) active iron(II) complexes are an integral class of switchable and bistable molecular materials. Spin-state switching properties of the SCO complexes have been studied in the bulk and single-molecule levels to progress toward fabricating molecule-based switching and memory elements. Supramolecular SCO complexes featuring anchoring groups for metallic electrodes, for example, gold (Au), are ideal candidates to study spin-state switching at the single-molecule level. In this study, we report on the spin-state switching characteristics of supramolecular iron(II) complexes 1 and 2 composed of functional 4-([2,2'-bithiophen]-5-ylethynyl)-2,6-di(1H-pyrazol-1-yl)pyridine (L1) and 4-(2-(5-(5-hexylthiophen-2-yl)thiophen-2-yl)ethynyl)-2,6-di(1H-pyrazol-1-yl)pyridine (L2) ligands, respectively. Density functional theory (DFT) studies revealed stretching-induced spin-state switching in a molecular junction composed of complex 1, taken as a representative example, and gold electrodes. Single-molecule conductance traces revealed the unfavorable orientation of the complexes in the junctions to demonstrate the spin-state dependence of the conductance.
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Affiliation(s)
- Senthil Kumar Kuppusamy
- Institute
for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Asato Mizuno
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Amador García-Fuente
- Departamento
de Física, Universidad de Oviedo, ES-33007 Oviedo, Spain
- Centro
de Investigación en Nanotecnología y Nanomateriales
(CINN, CSIC), El Entrego ES-33940, Spain
| | - Sebastiaan van der Poel
- Kavli
Institute of Nanoscience, Delft University of Technology, PO Box 5046, 2600 GA Delft, The Netherlands
| | - Benoît Heinrich
- Institut
de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg,
23, rue du Loess, BP 43, 67034 cedex
2 Strasbourg, France
| | - Jaime Ferrer
- Departamento
de Física, Universidad de Oviedo, ES-33007 Oviedo, Spain
- Centro
de Investigación en Nanotecnología y Nanomateriales
(CINN, CSIC), El Entrego ES-33940, Spain
| | - Herre S. J. van der Zant
- Kavli
Institute of Nanoscience, Delft University of Technology, PO Box 5046, 2600 GA Delft, The Netherlands
| | - Mario Ruben
- Institute
for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Université
de Strasbourg (Unistra), Institute de Science et d′Ingénierie
Supramoléculaire (ISIS), Centre Européen de Science
Quantique (CESQ), 8,
Allée Gaspard Monge, F-67000 Strasbourg, France
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10
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Kartal S, Rogez G, Robert J, Heinrich B, Boudalis A. A magnetocaloric glass from an ionic-liquid gadolinium complex. Chemphyschem 2022; 23:e202200213. [PMID: 35441760 DOI: 10.1002/cphc.202200213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/08/2022] [Indexed: 11/09/2022]
Abstract
[Gd 5 (L) 16 (H 2 O) 8 ](Tf 2 N) 15 was obtained from reaction of Gd 2 O 3 with 1-carboxymethyl-3-ethylimidazolium chloride (LHCl). The material was found to be an ionic liquid that freezes to glassy state on cooling to -30°C. Variable-temperature magnetic studies reveal the presence of weak magnetic intramolecular interactions in the glass. Isothermal variable-field magnetization demonstrates a magnetocaloric effect (MCE), which is the first finding of such an effect in a molecular glass. This MCE explainable by an uncoupled representation, with a magnetic entropy change of -11.36 J K -1 kg -1 at 1.8 K for a 0-7 T magnetic field change, and with a refrigerant capacity of 125.9 J kg -1 , in the 1.8-50 K interval.
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Affiliation(s)
- Seda Kartal
- Université de Strasbourg: Universite de Strasbourg, UMR7177: Institut de Chimie de Strasbourg, FRANCE
| | - Guillaume Rogez
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg, IPCMS: Institut de physique et chimie des materiaux de Strasbourg, FRANCE
| | - Jérôme Robert
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg, IPCMS: Institut de physique et chimie des materiaux de Strasbourg, FRANCE
| | - Benoît Heinrich
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg, IPCMS: Institut de physique et chimie des materiaux de Strasbourg, FRANCE
| | - Athanassios Boudalis
- Institut de Chimie de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081, 67081, Strasbourg, FRANCE
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11
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Serrano D, Kuppusamy SK, Heinrich B, Fuhr O, Hunger D, Ruben M, Goldner P. Ultra-narrow optical linewidths in rare-earth molecular crystals. Nature 2022; 603:241-246. [PMID: 35264757 DOI: 10.1038/s41586-021-04316-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 12/07/2021] [Indexed: 11/09/2022]
Abstract
Rare-earth ions (REIs) are promising solid-state systems for building light-matter interfaces at the quantum level1,2. This relies on their potential to show narrow optical and spin homogeneous linewidths, or, equivalently, long-lived quantum states. This enables the use of REIs for photonic quantum technologies such as memories for light, optical-microwave transduction and computing3-5. However, so far, few crystalline materials have shown an environment quiet enough to fully exploit REI properties. This hinders further progress, in particular towards REI-containing integrated nanophotonics devices6,7. Molecular systems can provide such capability but generally lack spin states. If, however, molecular systems do have spin states, they show broad optical lines that severely limit optical-to-spin coherent interfacing8-10. Here we report on europium molecular crystals that exhibit linewidths in the tens of kilohertz range, orders of magnitude narrower than those of other molecular systems. We harness this property to demonstrate efficient optical spin initialization, coherent storage of light using an atomic frequency comb, and optical control of ion-ion interactions towards implementation of quantum gates. These results illustrate the utility of rare-earth molecular crystals as a new platform for photonic quantum technologies that combines highly coherent emitters with the unmatched versatility in composition, structure and integration capability of molecular materials.
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Affiliation(s)
- Diana Serrano
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France.
| | - Senthil Kumar Kuppusamy
- Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany. .,Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, Strasbourg, France
| | - Olaf Fuhr
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.,Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - David Hunger
- Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.,Physikalisches Institut, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Mario Ruben
- Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany. .,Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany. .,Centre Européen de Sciences Quantiques (CESQ), Institut de Science et d'Ingénierie Supramoléculaire (ISIS), Université de Strasbourg, Strasbourg, France.
| | - Philippe Goldner
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France.
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12
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Suryadevara N, Mizuno A, Spieker L, Salamon S, Sleziona S, Maas A, Pollmann E, Heinrich B, Schleberger M, Wende H, Kuppusamy SK, Ruben M. Cover Feature: Structural Insights into Hysteretic Spin‐Crossover in a Set of Iron(II)‐2,6‐bis(1
H
‐Pyrazol‐1‐yl)Pyridine) Complexes (Chem. Eur. J. 6/2022). Chemistry 2022. [DOI: 10.1002/chem.202200173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nithin Suryadevara
- Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Asato Mizuno
- Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Lea Spieker
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Soma Salamon
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Stephan Sleziona
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - André Maas
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Erik Pollmann
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) CNRS-Université de Strasbourg 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Marika Schleberger
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Heiko Wende
- University of Duisburg-Essen Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) Lotharstraße 1 47057 Duisburg Germany
| | - Senthil Kumar Kuppusamy
- Institute for Quantum Materials and Technologies (IQMT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Mario Ruben
- Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Quantum Materials and Technologies (IQMT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Centre Européen de Sciences Quantiques (CESQ) Institut de Science et d'Ingénierie Supramoléculaires (ISIS) 8 allée Gaspard Monge, BP 70028 67083 Strasbourg Cedex France
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13
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Shaya J, Correia G, Heinrich B, Ribierre JC, Polychronopoulou K, Mager L, Méry S. Functionalization of Biphenylcarbazole (CBP) with Siloxane-Hybrid Chains for Solvent-Free Liquid Materials. Molecules 2021; 27:molecules27010089. [PMID: 35011322 PMCID: PMC8746609 DOI: 10.3390/molecules27010089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 11/09/2022]
Abstract
We report herein the synthesis of siloxane-functionalized CBP molecules (4,4′-bis(carbazole)-1,1′-biphenyl) for liquid optoelectronic applications. The room-temperature liquid state is obtained through a convenient functionalization of the molecules with heptamethyltrisiloxane chains via hydrosilylation of alkenyl spacers. The synthesis comprises screening of metal-catalyzed methodologies to introduce alkenyl linkers into carbazoles (Stille and Suzuki Miyaura cross-couplings), incorporate the alkenylcarbazoles to dihalobiphenyls (Ullmann coupling), and finally introduce the siloxane chains. The used conditions allowed the synthesis of the target compounds, despite the high reactivity of the alkenyl moieties bound to π-conjugated systems toward undesired side reactions such as polymerization, isomerization, and hydrogenation. The features of these solvent-free liquid CBP derivatives make them potentially interesting for fluidic optoelectronic applications.
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Affiliation(s)
- Janah Shaya
- IPCMS, CNRS-Strasbourg University, UMR7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; (G.C.); (B.H.); (L.M.)
- Department of Chemistry, College of Arts and Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Correspondence: (J.S.); (S.M.)
| | - Gabriel Correia
- IPCMS, CNRS-Strasbourg University, UMR7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; (G.C.); (B.H.); (L.M.)
| | - Benoît Heinrich
- IPCMS, CNRS-Strasbourg University, UMR7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; (G.C.); (B.H.); (L.M.)
| | - Jean-Charles Ribierre
- Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan;
| | - Kyriaki Polychronopoulou
- Department of Mechanical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates;
- Center for Catalysis and Separation, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Loïc Mager
- IPCMS, CNRS-Strasbourg University, UMR7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; (G.C.); (B.H.); (L.M.)
| | - Stéphane Méry
- IPCMS, CNRS-Strasbourg University, UMR7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; (G.C.); (B.H.); (L.M.)
- Correspondence: (J.S.); (S.M.)
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14
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Kuppusamy SK, Suryadevara N, Mizuno A, Spieker L, Salamon S, Sleziona S, Maas A, Pollmann E, Heinrich B, Schleberger M, Wende H, Ruben M. Structural Insights into Hysteretic Spin-Crossover in a Set of Iron(II)-2,6-bis(1H-pyrazol-1-yl)pyridine) Complexes. Chemistry 2021; 28:e202103853. [PMID: 34939670 PMCID: PMC9305185 DOI: 10.1002/chem.202103853] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 11/21/2022]
Abstract
Bistable spin‐crossover (SCO) complexes that undergo abrupt and hysteretic (ΔT1/2) spin‐state switching are desirable for molecule‐based switching and memory applications. In this study, we report on structural facets governing hysteretic SCO in a set of iron(II)‐2,6‐bis(1H‐pyrazol‐1‐yl)pyridine) (bpp) complexes – [Fe(bpp−COOEt)2](X)2⋅CH3NO2 (X=ClO4, 1; X=BF4, 2). Stable spin‐state switching – T1/2=288 K; ΔT1/2=62 K – is observed for 1, whereas 2 undergoes above‐room‐temperature lattice‐solvent content‐dependent SCO – T1/2=331 K; ΔT1/2=43 K. Variable‐temperature single‐crystal X‐ray diffraction studies of the complexes revealed pronounced molecular reorganizations – from the Jahn‐Teller‐distorted HS state to the less distorted LS state – and conformation switching of the ethyl group of the COOEt substituent upon SCO. Consequently, we propose that the large structural reorganizations rendered SCO hysteretic in 1 and 2. Such insights shedding light on the molecular origin of thermal hysteresis might enable the design of technologically relevant molecule‐based switching and memory elements.
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Affiliation(s)
- Senthil Kumar Kuppusamy
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie, Institute for quantum materials and technologies, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen,, 76344, Karlsruhe, GERMANY
| | - Nithin Suryadevara
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie, IQMT, GERMANY
| | - Asato Mizuno
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie, INT, GERMANY
| | - Lea Spieker
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Soma Salamon
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Stephan Sleziona
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - André Maas
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Erik Pollmann
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Benoît Heinrich
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg, DMO, FRANCE
| | - Marika Schleberger
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Heiko Wende
- University of Duisburg-Essen: Universitat Duisburg-Essen, Faculty of Physics and CENIDE, GERMANY
| | - Mario Ruben
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie, Institute of Nanotechnology, GERMANY
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15
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Barloy L, Heinrich B, Scarpi-Luttenauer M, Douce L, Henry M, Khalil G, Klein D, Kyritsakas N, Mobian P. Modified pyridine-triazole and 2,2'-bipyrimidine ligands generating robust titanium complexes constructed around a TiO 4N 2 core. Dalton Trans 2021; 50:17008-17022. [PMID: 34738604 DOI: 10.1039/d1dt03172d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis and characterisation of novel chelate nitrogen ligands with phasmidic tails (pyridine-triazole ligand 1b; 2,2'-bipyrimidine ligands 2b and 3b) as well as their titanium(IV) coordination complexes are reported. The analogous ligands 1a, 2a and 3a with methoxy substituents instead of the tails were also synthesized, together with titanium complexes that could be crystallographically characterised. A good agreement is noticed between analytical data of the complexes in solution (NMR) and in the solid state (X-ray diffraction). The complexes are overall robust on phases like alumina or silica, so that they could be characterised by TLC and sometimes chromatographied. Supramolecular architectures were generated from an equimolar solution of titanium(IV) isopropoxide, ligand 1a and a polyphenol ligand 5-H4, leading to a double-stranded helicate characterised by MS, NMR and crystallography, which was then converted into a trinuclear complex as shown by MS and NMR DOSY data. The liquid-crystalline behaviour of the ligands 1b, 2b and 3b incorporating the long alkyl tails and that of the complexes derived from these ligands have been investigated.
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Affiliation(s)
- L Barloy
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - B Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, F-67034 Strasbourg, France
| | | | - L Douce
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, F-67034 Strasbourg, France
| | - M Henry
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - G Khalil
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - D Klein
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - N Kyritsakas
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - P Mobian
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
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16
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Bhowmik PK, Koh JJ, King D, Han H, Heinrich B, Donnio B, Zaton D, Martinez-Felipe A. Dicationic stilbazolium salts: Structural, thermal, optical, and ionic conduction properties. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Vergnat V, Heinrich B, Rawiso M, Muller R, Pourroy G, Masson P. Iron Oxide/Polymer Core-Shell Nanomaterials with Star-like Behavior. Nanomaterials (Basel) 2021; 11:nano11092453. [PMID: 34578768 PMCID: PMC8471951 DOI: 10.3390/nano11092453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 12/05/2022]
Abstract
Embedding nanoparticles (NPs) with organic shells is a way to control their aggregation behavior. Using polymers allows reaching relatively high shell thicknesses but suffers from the difficulty of obtaining regular hybrid objects at gram scale. Here, we describe a three-step synthesis in which multi-gram NP batches are first obtained by thermal decomposition, prior to their covalent grafting by an atom transfer radical polymerization (ATRP) initiator and to the controlled growing of the polymer shell. Specifically, non-aggregated iron oxide NPs with a core principally composed of γ-Fe2O3 (maghemite) and either polystyrene (PS) or polymethyl methacrylate (PMMA) shell were elaborated. The oxide cores of about 13 nm diameter were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). After the polymerization, the overall diameter reached 60 nm, as shown by small-angle neutron scattering (SANS). The behavior in solution as well as rheological properties in the molten state of the polymeric shell resemble those of star polymers. Strategies to further improve the screening of NP cores with the polymer shells are discussed.
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Affiliation(s)
- Virginie Vergnat
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Université de Strasbourg, UMR7504, 23 Rue du Lœss, BP 43, 67034 Strasbourg, France; (V.V.); (G.P.)
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Université de Strasbourg, UMR7504, 23 Rue du Lœss, BP 43, 67034 Strasbourg, France; (V.V.); (G.P.)
- Correspondence: (B.H.); (P.M.)
| | - Michel Rawiso
- Institut Charles Sadron (ICS), CNRS, Université de Strasbourg, UPR 22, 23 Rue du Lœss, BP 84047, 67034 Strasbourg, France; (M.R.); (R.M.)
| | - René Muller
- Institut Charles Sadron (ICS), CNRS, Université de Strasbourg, UPR 22, 23 Rue du Lœss, BP 84047, 67034 Strasbourg, France; (M.R.); (R.M.)
| | - Geneviève Pourroy
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Université de Strasbourg, UMR7504, 23 Rue du Lœss, BP 43, 67034 Strasbourg, France; (V.V.); (G.P.)
| | - Patrick Masson
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Université de Strasbourg, UMR7504, 23 Rue du Lœss, BP 43, 67034 Strasbourg, France; (V.V.); (G.P.)
- Correspondence: (B.H.); (P.M.)
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18
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Talebpour P, Heinrich B, Gavat O, Carvalho A, Moulin E, Giuseppone N, Guenet JM. Modulation of the Molecular Structure of Tri-aryl Amine Fibrils in Hybrid Poly[vinyl chloride] Gel/Organogel Systems. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Parniyan Talebpour
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
| | - Benoît Heinrich
- IPCMS, Université de Strasbourg-CNRS, 23 rue du Loess, BP 43, Strasbourg Cedex 2 67034, France
| | - Odile Gavat
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
| | - Alain Carvalho
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
| | - Emilie Moulin
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
| | - Nicolas Giuseppone
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
| | - Jean-Michel Guenet
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23rue du Loess, BP84047, Strasbourg Cedex 2 67034, France
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19
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Perton F, Cotin G, Kiefer C, Strub JM, Cianferani S, Greneche JM, Parizel N, Heinrich B, Pichon B, Mertz D, Begin-Colin S. Iron Stearate Structures: An Original Tool for Nanoparticles Design. Inorg Chem 2021; 60:12445-12456. [PMID: 34339179 DOI: 10.1021/acs.inorgchem.1c01689] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron carboxylates are widely used as iron precursors in the thermal decomposition process or considered as in situ formed intermediate precursors. Their molecular and three-dimensional (3D)-structural nature has been shown to affect the shape, size, and composition of the resulting iron oxide nanoparticles (NPs). Among carboxylate precursors, stearates are particularly attractive because of their higher stability to aging and hydration and they are used as additives in many applications. Despite the huge interest of iron stearates, very few studies aimed up to now at deciphering their full metal-ligand structures and the mechanisms allowing us to achieve in a controlled manner the bottom-up NP formation. In this work, we have thus investigated the molecular structure and composition of two iron stearate precursors, synthesized by introducing either two (FeSt2) or three (FeSt3) stearate (St) chains. Interestingly, both iron stearates consist of lamellar structures with planes of iron polynuclear complexes (polycations) separated with stearate chains in all-trans conformation. The iron content in polycations was found very different between both iron stearates. Their detailed characterizations indicate that FeSt2 is mainly composed of [Fe3-(μ3-O)St6·xH2O]Cl, with no (or few) free stearate, whereas FeSt3 is a mixture of mainly [Fe7(μ3-O(H))6(μ2-OH)xSt12-2x]St with some [Fe3(μ3-O)St6·xH2O]St and free stearic acid. The formation of bigger polynuclear complexes with FeSt3 was related to higher hydrolysis and condensation rates within the iron(III) chloride solution compared to the iron(II) chloride solution. These data suggested a nucleation mechanism based on the condensation of polycation radicals generated by the catalytic departure of two stearate chains from an iron polycation-based molecule.
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Affiliation(s)
- Francis Perton
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Geoffrey Cotin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Céline Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Jean-Marc Strub
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Sarah Cianferani
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Jean-Marc Greneche
- Institut des Molécules et Matériaux du Mans IMMM UMR CNRS 6283, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Nathalie Parizel
- Institut de Chimie de Strasbourg (UMR 7177, CNRS Unistra), F-67081 Strasbourg, France.,Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081 Strasbourg, France.,French EPR Federation of Research (Reseau National de Rpe Interdisciplinaire, RENARD), Fédération IR-RPE CNRS 3443, 67000 Strasbourg, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France
| | - Benoit Pichon
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
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20
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Lucas F, McIntosh N, Jacques E, Lebreton C, Heinrich B, Donnio B, Jeannin O, Rault-Berthelot J, Quinton C, Cornil J, Poriel C. [4]Cyclo- N-alkyl-2,7-carbazoles: Influence of the Alkyl Chain Length on the Structural, Electronic, and Charge Transport Properties. J Am Chem Soc 2021; 143:8804-8820. [PMID: 34077184 DOI: 10.1021/jacs.1c03240] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Macrocycles possessing radially oriented π-orbitals have experienced a fantastic development. However, their incorporation in organic electronic devices remains very scarce. In this work, we aim at bridging the gap between organic electronics and nanorings by reporting the first detailed structure-properties-device performance relationship study of organic functional materials based on a nanoring system. Three [4]cyclo-N-alkyl-2,7-carbazoles bearing different alkyl chains on their nitrogen atoms have been synthesized and characterized by combined experimental and theoretical approaches. This study includes electrochemical, photophysical, thermal, and structural solid-state measurements and charge transport properties investigations. An optimized protocol of the Pt approach has been developed to synthesize the [4]cyclocarbazoles in high yield (52-64%), of great interest for further development of nanorings, especially in materials science. The charge transport properties of [4]cyclocarbazoles and model compound [8]cycloparaphenylene ([8]CPP) have been studied. Although no field effect (FE) mobility was recorded for the benchmark [8]CPP, FE mobility values of ca. 10-5 cm2·V-1·s-1 were recorded for the [4]cyclocarbazoles. The characteristics (threshold voltage VTH, subthreshold swing SS, trapping energy ΔE) recorded for the three [4]cyclocarbazoles appear to be modulated by the alkyl chain length borne by the nitrogen atoms. Remarkably, the space-charge-limited current mobilities measured for the [4]cyclocarbazoles are about 3 orders of magnitude higher than that of [8]CPP (1.37/2.78 × 10-4 cm2·V-1·s-1 for the [4]cyclocarbazoles vs 1.21 × 10-7 cm2·V-1·s-1 for [8]CPP), highlighting the strong effect of nitrogen bridges on the charge transport properties. The whole study opens the way to the use of nanorings in electronics, which is now the next step of their development.
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Affiliation(s)
- Fabien Lucas
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Nemo McIntosh
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | | | | | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | | | | | | | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | - Cyril Poriel
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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21
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Mahmoudi C, Bulut I, Jing J, Fall S, Heinrich B, Méry S, Heiser T, Lévêque P, Steveler E, Majdoub M, Leclerc N. Regioisomers of Organic Semiconducting Dumbbell‐Shaped Molecules: Synthesis and Structure‐Properties Relationship. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chaima Mahmoudi
- Institut de Chimie et Procédés pour l'Énergie l'Environnement et la Santé (ICPEES) UMR 7515-CNRS Université de Strasbourg, ECPM 25 rue Becquerel 67087 Strasbourg France
- Laboratoire des Interfaces et Matériaux Avancés (LIMA) Faculté des Sciences de Monastir (Université de Monastir), Bd. De l'Environnement 5019 Monastir Tunisia
| | - Ibrahim Bulut
- Institut de Chimie et Procédés pour l'Énergie l'Environnement et la Santé (ICPEES) UMR 7515-CNRS Université de Strasbourg, ECPM 25 rue Becquerel 67087 Strasbourg France
| | - Jiang Jing
- Laboratoire ICube UMR 7357-CNRS Université de Strasbourg 23 rue du Loess 67037 Strasbourg France
| | - Sadiara Fall
- Laboratoire ICube UMR 7357-CNRS Université de Strasbourg 23 rue du Loess 67037 Strasbourg France
| | - Benoît Heinrich
- Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS) UMR 7504-CNRS Université de Strasbourg 23 rue du Loess 67034 Strasbourg France
| | - Stéphane Méry
- Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS) UMR 7504-CNRS Université de Strasbourg 23 rue du Loess 67034 Strasbourg France
| | - Thomas Heiser
- Laboratoire ICube UMR 7357-CNRS Université de Strasbourg 23 rue du Loess 67037 Strasbourg France
| | - Patrick Lévêque
- Laboratoire ICube UMR 7357-CNRS Université de Strasbourg 23 rue du Loess 67037 Strasbourg France
| | - Emilie Steveler
- Laboratoire ICube UMR 7357-CNRS INSA Strasbourg 24 Boulevard de la victoire 67084 France
| | - Mustapha Majdoub
- Laboratoire des Interfaces et Matériaux Avancés (LIMA) Faculté des Sciences de Monastir (Université de Monastir), Bd. De l'Environnement 5019 Monastir Tunisia
| | - Nicolas Leclerc
- Institut de Chimie et Procédés pour l'Énergie l'Environnement et la Santé (ICPEES) UMR 7515-CNRS Université de Strasbourg, ECPM 25 rue Becquerel 67087 Strasbourg France
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22
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Wendels S, Heinrich B, Donnio B, Avérous L. Green and controlled synthesis of short diol oligomers from polyhydroxyalkanoate to develop fully biobased thermoplastics. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Schwaller D, Zapién-Castillo S, Carvalho A, Combet J, Collin D, Jacomine L, Kékicheff P, Heinrich B, Lamps JP, Díaz-Zavala NP, Mésini PJ. Gel-to-gel non-variant transition of an organogel caused by polymorphism from nanotubes to crystallites. Soft Matter 2021; 17:4386-4394. [PMID: 33908587 DOI: 10.1039/d1sm00195g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
An amide based gelator forms gels in trans-decalin. Below concentrations of 1 wt% the gels melt at temperatures varying with concentration. Above a concentration of 1 wt%, upon heating, the gel transforms into an opaque gel at an invariant temperature, and melts at higher temperature. The gel-to-gel transition is evidenced by several techniques: DSC, rheology, NMR, OM and turbidimetry. The phase diagram with the domain of the existence of both morphs was mapped by these techniques. Optical and electronic microscopy studies show that the first gel corresponds to the self-assembled nanotubes while the second gel is formed by crystalline fibers. The fibers are crystalline, as shown by the presence of Bragg peaks in the scattering curves. Both morphs correspond to a different H-bonding pattern as shown by FTIR. The first gel forms at a higher cooling rate, is metastable and transforms slowly into the second one. The second gel is stable. It forms at a low cooling rate, or by thermal annealing or aging of the first gel.
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Affiliation(s)
- Duncan Schwaller
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Samuel Zapién-Castillo
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica. Prolongación Bahía de Aldair, Ave. de las Bahías, Parque de la Pequeña y Mediana Industria, 89600 Altamira, Mexico.
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Jérôme Combet
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Dominique Collin
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Leandro Jacomine
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Patrick Kékicheff
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-Université de Strasbourg, 23 rue du Loess, 67034 Strasbourg, France
| | - Jean-Philippe Lamps
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France.
| | - Nancy P Díaz-Zavala
- Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero, Centro de Investigación en Petroquímica. Prolongación Bahía de Aldair, Ave. de las Bahías, Parque de la Pequeña y Mediana Industria, 89600 Altamira, Mexico.
| | - Philippe J Mésini
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, F-67000 Strasbourg, France. and International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, 67000 Strasbourg, France
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24
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Giudice N, L'Her M, Scrafton E, Atoini Y, Gentile G, Heinrich B, Berthiot R, Aliprandi A, Douce L. Cover Feature: Luminescent Ionic Liquid Crystals Based on Naphthalene‐Imidazolium Unit (Eur. J. Org. Chem. 14/2021). European J Org Chem 2021. [DOI: 10.1002/ejoc.202100374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nicolas Giudice
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Matthieu L'Her
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Emma Scrafton
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Youssef Atoini
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Giuseppe Gentile
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Benoît Heinrich
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Romain Berthiot
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Alessandro Aliprandi
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Laurent Douce
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
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25
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Giudice N, L'Her M, Scrafton E, Atoini Y, Gentile G, Heinrich B, Berthiot R, Aliprandi A, Douce L. Luminescent Ionic Liquid Crystals Based on Naphthalene‐Imidazolium Unit. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nicolas Giudice
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Matthieu L'Her
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Emma Scrafton
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Youssef Atoini
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Giuseppe Gentile
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Benoît Heinrich
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Romain Berthiot
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
| | - Alessandro Aliprandi
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires Institut de Science et d'Ingénierie Supramoléculaires (ISIS - UMR 7006) Université de Strasbourg - CNRS 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Laurent Douce
- Département des Matériaux Organiques Institut de Physique et de Chimie des Matériaux de Strasbourg (UMR 7504) Université de Strasbourg/CNRS 23 Rue du Loess 67000 Strasbourg France
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26
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Zhu X, Hessin C, Salamé A, Sosa-Vargas L, Kreher D, Adachi C, Proust A, Mialane P, Marrot J, Bouchet A, Sliwa M, Méry S, Heinrich B, Mathevet F, Izzet G. Photoactive Organic/Inorganic Hybrid Materials with Nanosegregated Donor-Acceptor Arrays. Angew Chem Int Ed Engl 2021; 60:8419-8424. [PMID: 33448550 DOI: 10.1002/anie.202014319] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/14/2021] [Indexed: 11/07/2022]
Abstract
The synthesis of the first mesogenic donor-acceptor polyoxometalate (POM)-based hybrid is herein described. The structural and electronic properties of the hybrid compound were evaluated through combination of small- and wide-angle X-ray scattering, optical microscopy, electrochemistry and photoluminescence. In the solid state, the compound behaves as a birefringent solid, displaying a lamellar organization in which double-layers of POMs and bis(thiophene)thienothiophene organic donors alternate regularly. Noticeably, the sub-unit organizations in the composite are similar to that observed for the individual POM and organic donor precursors. Photophysical studies show that in the hybrid, the fluorescence of the organic donor unit is considerably quenched both in solution and in the solid state, which is attributed to occurrence of intramolecular charge-separated state.
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Affiliation(s)
- Xiaolei Zhu
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Cheriehan Hessin
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Aude Salamé
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Lydia Sosa-Vargas
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - David Kreher
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Chihaya Adachi
- Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka, Japan
| | - Anna Proust
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Pierre Mialane
- Université de Versailles Saint-Quentin en Yvelines, Institut Lavoisier Versailles, Université Paris Saclay, UMR CNRS 8180, 78035, Versailles cedex, France
| | - Jérome Marrot
- Université de Versailles Saint-Quentin en Yvelines, Institut Lavoisier Versailles, Université Paris Saclay, UMR CNRS 8180, 78035, Versailles cedex, France
| | - Aude Bouchet
- Univ. Lille, CNRS, UMR 8516, LASIRE, LAboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, 59000, Lille, France
| | - Michel Sliwa
- Univ. Lille, CNRS, UMR 8516, LASIRE, LAboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, 59000, Lille, France
| | - Stéphane Méry
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR, 7504, Strasbourg, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR, 7504, Strasbourg, France
| | - Fabrice Mathevet
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France.,Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka, Japan
| | - Guillaume Izzet
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
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27
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Suleymanova AF, Yakovleva YA, Eltsov OS, Lantushenko AO, Evstigneev MP, Donnio B, Heinrich B, Kozhevnikov VN. Comparative analysis of self-aggregation of liquid crystalline Pt(II) complexes in solution and in neat films. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Zhu X, Hessin C, Salamé A, Sosa‐Vargas L, Kreher D, Adachi C, Proust A, Mialane P, Marrot J, Bouchet A, Sliwa M, Méry S, Heinrich B, Mathevet F, Izzet G. Photoactive Organic/Inorganic Hybrid Materials with Nanosegregated Donor–Acceptor Arrays. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014319] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaolei Zhu
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Cheriehan Hessin
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Aude Salamé
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Lydia Sosa‐Vargas
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - David Kreher
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Chihaya Adachi
- Center for Organic Photonics and Electronics Research (OPERA) Kyushu University Fukuoka Japan
| | - Anna Proust
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Pierre Mialane
- Université de Versailles Saint-Quentin en Yvelines Institut Lavoisier Versailles Université Paris Saclay UMR CNRS 8180 78035 Versailles cedex France
| | - Jérome Marrot
- Université de Versailles Saint-Quentin en Yvelines Institut Lavoisier Versailles Université Paris Saclay UMR CNRS 8180 78035 Versailles cedex France
| | - Aude Bouchet
- Univ. Lille CNRS, UMR 8516 LASIRE LAboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement 59000 Lille France
| | - Michel Sliwa
- Univ. Lille CNRS, UMR 8516 LASIRE LAboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement 59000 Lille France
| | - Stéphane Méry
- Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504 Strasbourg France
| | - Benoît Heinrich
- Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504 Strasbourg France
| | - Fabrice Mathevet
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
- Center for Organic Photonics and Electronics Research (OPERA) Kyushu University Fukuoka Japan
| | - Guillaume Izzet
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
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29
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Choi KR, Kim DH, Lee YU, Placide V, Huynh S, Yao D, Canard G, Zaborova E, Mathevet F, Mager L, Heinrich B, Ribierre JC, Wu JW, Fages F, D'Aléo A. Effect of the electron donating group on the excited-state electronic nature and epsilon-near-zero properties of curcuminoid-borondifluoride dyes. RSC Adv 2021; 11:38247-38257. [PMID: 35498060 PMCID: PMC9043959 DOI: 10.1039/d1ra08025c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 11/22/2021] [Indexed: 11/25/2022] Open
Abstract
Epsilon-near-zero (ENZ) properties have been reported in organic molecular films. In particular, cyanine and squaraine films have been shown to exhibit ENZ properties in the visible spectral region with a strong 3rd order nonlinear optical response near the ENZ spectral region. Noting both cyanine and squaraine belong to the polymethine family, a series of six curcuminoid borondifluoride (Curc) derivatives were developed to examine whether such a polymethine character is positively correlated with the ENZ property of the organic films. Those Curc derivatives possess a Donor–Acceptor–Donor (D–A–D) architecture with acceptor, AcacBF2, located at the molecular center. The backbone of Curc is designed such that the donor strength can be tuned to transit between charge transfer (CT) and polymethine character. This balance between CT and polymethine character of the Curc series is examined based on the Lippert–Mataga plot. As donor strength in the D–A–D structure increases, CT character is less marked resulting in a more dominant polymethine character. The structural and optical properties of the Curc films with a thickness in the order of 30 nm were examined to correlate the polymethine character with the ENZ response. The results obtained in isotropic Curc thin films demonstrate that an increase of polymethine character associated with a stronger donor strength leads to an appearance/enhancement of the ENZ property in the visible spectrum range from 500 to 670 nm. Overall, this study provides useful guidelines to engineer new organic materials showing ENZ properties in a desired spectral range. Epsilon-near-zero (ENZ) properties have been reported in organic molecular films.![]()
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Affiliation(s)
- Kyu-Ri Choi
- Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Dae Hyeon Kim
- Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Yeon Ui Lee
- Department of Physics, Chungbuk National University, Chungbuk 28644, Republic of Korea
| | - Virginie Placide
- Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Steven Huynh
- Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Dandan Yao
- Aix Marseille Univ, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, 13288 Marseille, France
| | - Gabriel Canard
- Aix Marseille Univ, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, 13288 Marseille, France
| | - Elena Zaborova
- Aix Marseille Univ, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, 13288 Marseille, France
| | - Fabrice Mathevet
- Sorbonne Universités, Faculté des Sciences, CNRS, Parisien de Chimie Moléculaire (IPCM), UMR 8232, Chimie des Polymères, 75005 Paris, France
| | - Loïc Mager
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Jean-Charles Ribierre
- Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka 819-0395, Japan
| | - Jeong Weon Wu
- Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Frédéric Fages
- Aix Marseille Univ, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, 13288 Marseille, France
| | - Anthony D'Aléo
- Aix Marseille Univ, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, 13288 Marseille, France
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
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Senthil Kumar K, Del Giudice N, Heinrich B, Douce L, Ruben M. Bistable spin-crossover in a new series of [Fe(BPP-R) 2] 2+ (BPP = 2,6-bis(pyrazol-1-yl)pyridine; R = CN) complexes. Dalton Trans 2020; 49:14258-14267. [PMID: 33026376 DOI: 10.1039/d0dt02214d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spin-crossover (SCO) active transition metal complexes are a class of switchable molecular materials. Such complexes undergo hysteretic high-spin (HS) to low-spin (LS) transition, and vice versa, rendering them suitable for the development of molecule-based switching and memory elements. Therefore, the search for SCO complexes undergoing abrupt and hysteretic SCO, that is, bistable SCO, is actively carried out by the molecular magnetism community. In this study, we report the bistable SCO characteristics associated with a new series of iron(ii) complexes-[Fe(BPP-CN)2](X)2, X = BF4 (1a-d) or ClO4 (2)-belonging to the [Fe(BPP-R)2]2+ (BPP = 2,6-bis(pyrazol-1-yl)pyridine) family of complexes. Among the complexes, the lattice solvent-free complex 2 showed a stable and complete SCO (T1/2 = 241 K) with a thermal hysteresis width (ΔT) of 28 K-the widest ΔT reported so far for a [Fe(BPP-R)2](X)2 family of complexes, showing abrupt SCO. The reproducible and bistable SCO shown by the relatively simple [Fe(BPP-CN)2](X)2 series of molecular complexes is encouraging to pursue [Fe(BPP-R)2]2+ systems for the realization of technologically relevant SCO complexes.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France. and Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Nicolas Del Giudice
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
| | - Laurent Douce
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France. and Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany. and Institute of Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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31
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Schmidt A, Heinrich B, Kirscher G, Chaumont A, Henry M, Kyritsakas N, Haketa Y, Maeda H, Mobian P. Dipyrrolyldiketonato Titanium(IV) Complexes from Monomeric to Multinuclear Architectures: Synthesis, Stability, and Liquid-Crystal Properties. Inorg Chem 2020; 59:12802-12816. [PMID: 32845621 DOI: 10.1021/acs.inorgchem.0c01846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dipyrrolyldiketone ligands (dpkH) are used with Ti(OiPr)4 to afford monomeric titanium(IV) complexes displaying the general formula C2-[Ti(dpk)2(OiPr)2]. The dpkH ligands employed consist of two dipyrrolyldiketone compounds (2H and 3H) and three diphenyl-substituted analogues (4H-6H). The behavior of these octahedral [Ti(dpk)2(OiPr)2] species in solution was investigated by 1H NMR at variable temperatures. Dynamic phenomena were evidenced, and the activation parameters associated with these processes (ΔH⧧, ΔS⧧, and ΔG⧧) were retrieved. [Ti(dpk)2(OiPr)2] complexes are precursors for the formation of high-nuclearity aggregates whose structures depend on the substituents on the diketone backbone. The crystal structures of monomeric ([Ti(1)2(OiPr)2]; 1 is the 1,3-diphenyl-1,3-propanedionato ligand) and [Ti(2)2(OEt)2]), dimeric ([Ti2(1)4(μ2-O)2]), and tetrameric ([Ti4(4)8(μ2-O)4]) species have been established, and the origin of this structural diversity is discussed. The solid-state optical properties of several complexes were determined and interpreted with the help of DFT calculations. Finally, the dinuclear complex [Ti(6)2(μ2-O)2] was synthesized, where ligand 6 incorporates six long alkyl chains (C16H33). This complex shows rich mesomorphic properties, with an original room-temperature plastic crystal phase followed by a hexagonal columnar liquid-crystalline phase.
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Affiliation(s)
- Alexandra Schmidt
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 UDS-CNRS, University of Strasbourg, 23 rue du Loess, F-67034 Strasbourg, France
| | - Guillaume Kirscher
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Alain Chaumont
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France.,Laboratoire de Modélisation et Simulations Moléculaires, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Nathalie Kyritsakas
- Laboratoire de Tectonique Moléculaire, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
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32
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Senthil Kumar K, Šalitroš I, Heinrich B, Moldovan S, Mauro M, Ruben M. Spin-crossover in iron(II)-phenylene ethynylene-2,6-di(pyrazol-1-yl) pyridine hybrids: toward switchable molecular wire-like architectures. J Phys Condens Matter 2020; 32:204002. [PMID: 31945748 DOI: 10.1088/1361-648x/ab6cc2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Luminescent oligo(p-phenylene ethynylene) (OPE) and spin-crossover (SCO) active Fe(II)-2,6-di(pyrazol-1-yl) pyridine (BPP) systems are prominent examples proposed to develop functional materials such as molecular wires/memories. A marriage between OPE and Fe(II)-BPP systems is a strategy to obtain supramolecular luminescent ligands capable of metal coordination useful to produce novel spin-switchable hybrids with synergistic coupling between spin-state of Fe(II) and a physical property associated with the OPE skeleton, for example, electronic conductivity or luminescence. To begin in this direction, two novel ditopic ligands, namely L1 and L2, featuring OPE-type backbone end-capped with metal coordinating BPP were designed and synthetized. The ligand L2 tailored with 2-ethylhexyloxy chains at the 2 and 5 positions of the OPE skeleton shows modulated optical properties and improved solubility in common organic solvents relative to the parent ligand L1. Solution phase complexation of L1 and L2 with Fe(BF4)2·6H2O resulted in the formation of insoluble materials of the composition [Fe(L1)] n (BF4)2n and [Fe(L2)] n (BF4)2n as inferred from elemental analyses. Complex [Fe(L1)] n (BF4)2n underwent thermal SCO centred at T 1/2 = 275 K as well as photoinduced low-spin to high-spin transition with the existence of the metastable high-spin state up to 52 K. On the other hand, complex [Fe(L2)] n (BF4)2n , tethered with 2-ethylhexyloxy groups, showed gradual and half-complete SCO with 50% of the Fe(II)-centres permanently blocked in the high-spin state due to intermolecular steric interactions. The small angle x-ray scattering (SAXS) pattern of the as-prepared solid complex [Fe(L1)] n (BF4)2n revealed the presence of nm-sized crystallites implying a possible methodology towards the template-free synthesis of functional-SCO nanostructures.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg cedex 2, France
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Andelescu A, Heinrich B, Spirache MA, Voirin E, La Deda M, Di Maio G, Szerb EI, Donnio B, Costisor O. Playing with Pt
II
and Zn
II
Coordination to Obtain Luminescent Metallomesogens. Chemistry 2020; 26:4850-4860. [DOI: 10.1002/chem.202000124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Adelina‐Antonia Andelescu
- “Coriolan Dragulescu” Institute of ChemistryRomanian Academy 24 Mihai Viteazu Bvd. 300223 Timisoara Romania
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)UMR7504CNRS-Université de Strasbourg 67034 Strasbourg France
| | - Maria Angela Spirache
- “Coriolan Dragulescu” Institute of ChemistryRomanian Academy 24 Mihai Viteazu Bvd. 300223 Timisoara Romania
| | - Emilie Voirin
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)UMR7504CNRS-Université de Strasbourg 67034 Strasbourg France
| | - Massimo La Deda
- Dipartimento di Chimica e Tecnologie ChimicheUniversità della Calabria via P. Bucci, Cubo 14/C 87036 Arcavacata di Rende (CS) Italy
| | - Giuseppe Di Maio
- Dipartimento di Chimica e Tecnologie ChimicheUniversità della Calabria via P. Bucci, Cubo 14/C 87036 Arcavacata di Rende (CS) Italy
| | - Elisabeta I. Szerb
- “Coriolan Dragulescu” Institute of ChemistryRomanian Academy 24 Mihai Viteazu Bvd. 300223 Timisoara Romania
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)UMR7504CNRS-Université de Strasbourg 67034 Strasbourg France
| | - Otilia Costisor
- “Coriolan Dragulescu” Institute of ChemistryRomanian Academy 24 Mihai Viteazu Bvd. 300223 Timisoara Romania
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Ma T, Wang HF, Zhao KQ, Wang BQ, Hu P, Monobe H, Heinrich B, Donnio B. Nonlinear Nonacenes with a Dithienothiophene Substructure: Multifunctional Compounds that Act as Columnar Mesogens, Luminophores, π Gelators, and p-Type Semiconductors. Chempluschem 2020; 84:1439-1448. [PMID: 31944039 DOI: 10.1002/cplu.201900123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/04/2019] [Indexed: 11/08/2022]
Abstract
Board-like liquid-crystalline semiconductors based on the dithieno[3,2-b;2',3'-d]thiophene (DTT) substructure were synthesized and their thermal, self-assembly, optical, and semiconducting properties investigated. These sanidic compounds, bearing eight peripheral chains, are mesomorphic and spontaneously self-assemble into columnar hexagonal mesophases (Colhex ) over broad temperature ranges, as confirmed by polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering. Strong blue photoluminescence with absolute quantum yields up to 33 % were measured. These compounds also form blue-light emitting gels in various organic solvents. The fibrillar-like morphology of these gels, reminiscent of the columnar structure, and stabilized by efficient intermolecular interactions, was characterized by scanning electron microscopy. The charge carrier mobility of these π-extended mesogens was measured by time-of-flight transient photocurrent technique in the Colhex mesophase, and showed good hole-transport performance with charge carrier mobility of 10-3 cm2 V-1 s-1 .
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Affiliation(s)
- Tao Ma
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Hai-Feng Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Hirosato Monobe
- Inorganic Functional Materials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka, 563-8577, Japan
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR 7504), 23 rue du Loess, BP43, 67034, Strasbourg, Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR 7504), 23 rue du Loess, BP43, 67034, Strasbourg, Cedex 2, France
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L’Her M, Atoini Y, Fouchet J, Heinrich B, Del-Giudice N, Scrafton E, Bordes E, Karmazin L, Charbonnière L, De Cola L, Douce L. Correction: Luminescent imidazolium–naphthalene salts in liquid and solid states. NEW J CHEM 2020. [DOI: 10.1039/d0nj90011g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for ‘Luminescent imidazolium–naphthalene salts in liquid and solid states’ by Matthieu L’Her et al., New J. Chem., 2019, 43, 12529–12532.
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Senthil Kumar K, Vela S, Heinrich B, Suryadevara N, Karmazin L, Bailly C, Ruben M. Bi-stable spin-crossover in charge-neutral [Fe(R-ptp) 2] (ptp = 2-(1H-pyrazol-1-yl)-6-(1H-tetrazol-5-yl)pyridine) complexes. Dalton Trans 2019; 49:1022-1031. [PMID: 31859300 DOI: 10.1039/c9dt04411f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bi-stable charge-neutral iron(ii) spin-crossover (SCO) complexes are a class of switchable molecular materials proposed for molecule-based switching and memory applications. In this study, we report on the SCO behavior of a series of iron(ii) complexes composed of rationally designed 2-(1H-pyrazol-1-yl)-6-(1H-tetrazol-5-yl)pyridine (ptp) ligands. The powder forms of [Fe2+(R-ptp-)2]0 complexes tethered with less-bulky substituents-R = H (1), R = CH2OH (2), and R = COOCH3 (3; previously reported)-at the 4-position of the pyridine ring of the ptp skeleton showed abrupt and hysteretic SCO at or above room temperature (RT), whereas complex 5 featuring a bulky pyrene substituent showed incomplete and gradual SCO behavior. The role of intermolecular interactions, lattice solvent, and electronic nature of the chemical substituents (R) in tuning the SCO of the complexes is elucidated.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
| | - Sergi Vela
- Laboratoire de Chimie Quantique, Institut de Chimie, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg, France.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
| | - Nithin Suryadevara
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Lydia Karmazin
- Service de Radiocristallographie, Fédération de Chimie Le Bel, FR2010 CNRS-Université de Strasbourg, 1 rue Blaise Pascal, BP 296/R8, 67008 Strasbourg Cedex, France
| | - Corinne Bailly
- Service de Radiocristallographie, Fédération de Chimie Le Bel, FR2010 CNRS-Université de Strasbourg, 1 rue Blaise Pascal, BP 296/R8, 67008 Strasbourg Cedex, France
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France. and Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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Torres‐Werlé M, Heinrich B, Maisse‐François A, Bellemin‐Laponnaz S. Synthesis of alternating metallocopolymers by chiral recognition. Chirality 2019; 31:903-909. [DOI: 10.1002/chir.23128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Maria Torres‐Werlé
- Institut de Physique et Chimie de StrasbourgCNRS—Université de Strasbourg Strasbourg cedex France
| | - Benoît Heinrich
- Institut de Physique et Chimie de StrasbourgCNRS—Université de Strasbourg Strasbourg cedex France
| | - Aline Maisse‐François
- Institut de Physique et Chimie de StrasbourgCNRS—Université de Strasbourg Strasbourg cedex France
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Alvariño C, Heinrich B, Donnio B, Deschenaux R, Therrien B. Supramolecular Arene-Ruthenium Metallacycle with Thermotropic Liquid-Crystalline Properties. Inorg Chem 2019; 58:9505-9512. [PMID: 31247839 DOI: 10.1021/acs.inorgchem.9b01532] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functionalization of 1,4-di(4-pyridinyl)benzene with poly(arylester) dendrimers bearing cyanobiphenyl end-groups gives a bidentate dendromesogenic ligand (L) that exhibits thermotropic liquid-crystalline properties. Combination of the diruthenium complex [Ru2(p-cymene)2(donq)][DDS]2 (M) with L, by coordination-driven self-assembly, affords the discrete and well-defined metallacycle M2L2. Like L, this supramolecular dendritic system displays mesomorphic properties above 50 °C. Both compounds L and M2L2 show smectic phases, characterized by a multilayered organization of the multiple components.
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Affiliation(s)
- Cristina Alvariño
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , Neuchâtel 2000 , Switzerland
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , Strasbourg cedex 2 67034 , France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , Strasbourg cedex 2 67034 , France
| | - Robert Deschenaux
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , Neuchâtel 2000 , Switzerland
| | - Bruno Therrien
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , Neuchâtel 2000 , Switzerland
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Zhao KC, Du JQ, Wang HF, Zhao KQ, Hu P, Wang BQ, Monobe H, Heinrich B, Donnio B. Board-like Fused-Thiophene Liquid Crystals and their Benzene Analogs: Facile Synthesis, Self-Assembly, p-Type Semiconductivity, and Photoluminescence. Chem Asian J 2019; 14:462-470. [PMID: 30536874 DOI: 10.1002/asia.201801483] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/22/2018] [Indexed: 11/09/2022]
Abstract
Fused-thiophene discotic liquid crystals were designed and easily synthesized by Suzuki coupling and FeCl3 oxidized tandem cyclodehydrogenation reactions, including homo- and cross-coupling reactions. The resulting hexagonal and rectangular columnar mesomorphic supramolecular structures formed were characterized by polarizing optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering. The charge carrier transport properties in the mesophases of two of the synthesized fused-thiophene discogens were measured by transient photocurrent time-of-flight (TOF) technique, revealing fast hole transport values in the range of 10-3 to 10-2 cm2 V-1 s-1 , thus demonstrating potential applications in electronic devices. The luminescent sanidic mesogens, with different extended π-conjugated systems, also emit blue, green, or red light, with absolute photoluminescent quantum yields as high as 18 %.
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Affiliation(s)
- Kai-Chun Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Jun-Qi Du
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Hai-Feng Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Hirosato Monobe
- Inorganic Functional Materials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka, 563-8577, Japan
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-University de Strasbourg (UMR 7504), 23 rue du Loess, BP43, 67034, Strasbourg, Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-University de Strasbourg (UMR 7504), 23 rue du Loess, BP43, 67034, Strasbourg, Cedex 2, France
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L’Her M, Atoini Y, Fouchet J, Heinrich B, Del-Giudice N, Scrafton E, Bordes E, Karmazin L, Charbonière L, De Cola L, Douce L. Luminescent imidazolium–naphthalene salts in liquid and solid states. NEW J CHEM 2019. [DOI: 10.1039/c9nj02972a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article describes highly luminescent ionic compounds in liquid and crystalline states, where a naphthalene moiety is conjugated to an imidazolium center decorated with two different lengths of alkyl chains.
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Barloy L, Heinrich B, Douce L, Henry M, Scarpi-Luttenauer M, Kyritsakas N, Mobian P. A robust Ti(iv)-based mesogen constructed around a TiO4N2 core. Dalton Trans 2019; 48:1960-1963. [DOI: 10.1039/c8dt04972f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ti(iv)-complex with thermotropic liquid crystal properties is reported.
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Affiliation(s)
- L. Barloy
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - B. Heinrich
- Université de Strasbourg
- CNRS
- Institut de Physique et de Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - L. Douce
- Université de Strasbourg
- CNRS
- Institut de Physique et de Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - M. Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - M. Scarpi-Luttenauer
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - N. Kyritsakas
- Laboratoire de Tectonique Moléculaire
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - P. Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
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Senthil Kumar K, Heinrich B, Vela S, Moreno-Pineda E, Bailly C, Ruben M. Bi-stable spin-crossover characteristics of a highly distorted [Fe(1-BPP-COOC2H5)2](ClO4)2·CH3CN complex. Dalton Trans 2019; 48:3825-3830. [DOI: 10.1039/c8dt04928a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A HS Fe(ii) complex, see figure, with a pronounced angular distortion (ϕ) = 158.83(17)° showed lattice solvent dependent spin-state switching characteristics with a thermal hysteresis width (ΔT) of 101 K.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- CNRS-Université de Strasbourg
- 67034 Strasbourg cedex 2
- France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- CNRS-Université de Strasbourg
- 67034 Strasbourg cedex 2
- France
| | - Sergi Vela
- Laboratoire de Chimie Quantique
- UMR 7111
- CNRS-Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Eufemio Moreno-Pineda
- Institute of Nanotechnology
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen
- Germany
| | - Corinne Bailly
- Service de Radiocristallographie
- Fédération de Chimie Le Bel FR2010 CNRS-Université de Strasbourg
- 67008 Strasbourg cedex
- France
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- CNRS-Université de Strasbourg
- 67034 Strasbourg cedex 2
- France
- Institute of Nanotechnology
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Affiliation(s)
- S. Nasifoglu
- Department of Dermatology; General Hospital Augsburg; Augsburg Germany
| | - B. Heinrich
- Brudler, Heinrich, Bangerter Haematologic-Oncological Practice; Augsburg Germany
| | - J. Welzel
- Department of Dermatology; General Hospital Augsburg; Augsburg Germany
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Miguel Coello AB, Bardají M, Coco S, Donnio B, Heinrich B, Espinet P. Triphenylene-Imidazolium Salts and Their NHC Metal Complexes, Materials with Segregated Multicolumnar Mesophases. Inorg Chem 2018; 57:4359-4369. [PMID: 29608287 DOI: 10.1021/acs.inorgchem.7b03178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two imidazolium salts containing one or two pentadodecyloxytriphenylene units linked through a hexyloxy chain and Br-, [AuBr mCl4- m]-, or [PtBr mCl4- m]2- ( m = 0-3) as counterion have been prepared. Reaction of the imidazolium bromides with M2O (M = Cu, Ag), or carbene transmetalation from the silver product, leads to N-heterocyclic carbene complexes [MX(NHC)] (M = Cu, X = Br; M = Au, X = Cl, C≡CPh), [Ag(NHC)2][AgBr2], and [PtCl2(NHC)2], with NHC bearing one or two triphenylene fragments. Except for the gold derivatives and one Cu complex, the rest of them behave as liquid crystals organized in columnar mesophases (rectangular c2 mm or p2mg or hexagonal p6mm symmetries) with melting points in the range 30 to 60 °C and clearing points in the range 57-112 °C. The mesophase structures were determined by small-angle X-ray scattering. Structural studies and models point to nanosegregation of triphenylene columns and imidazolium/metal carbene moieties, separated by alkoxy chains, leading to multicolumnar systems. The compounds display emission spectra related to the triphenylene core in solution, in the mesophase, in the isotropic liquid, and in the solid state.
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Affiliation(s)
- Ana B Miguel Coello
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Manuel Bardají
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Silverio Coco
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) , UMR 7504 (CNRS-Université de Strasbourg) , 23 rue du Loess, BP 43 , 67034 Strasbourg Cedex 2, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) , UMR 7504 (CNRS-Université de Strasbourg) , 23 rue du Loess, BP 43 , 67034 Strasbourg Cedex 2, France
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
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Abstract
Liquid-crystalline tris[60]fullerodendrimers based on first- and second-generation poly(arylester)dendrons carrying cyanobiphenyl mesogens were synthesized for the first time by the olefin cross-metathesis reaction between type I (terminal) and type II (α,β-unsaturated carbonyl) olefinic precursors, using a second-generation Grubbs or Hoveyda-Grubbs catalyst. The modular synthetic approach developed here also allowed the selective preparation of the [60]fullerene-free, mono[60]fullerodendrimer, and bis[60]fullerodendrimer derivatives from the appropriate precursors. As revealed by polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering, all of the materials displayed liquid-crystalline properties. In agreement with the nature of the dendritic building blocks, the emergence of lamellar mesophases (smectic C and/or smectic A phases), with the segregation of the various constitutive parts, was systematically observed. The small variation of the mesomorphic temperature range and of the mesophase stability suggested that the mesomorphism is essentially dominated by the dendrimer itself and is regulated by a subtle adaptive mechanism, in which the proportion of monolayering and bilayering arrangements of the multisegregated lamellar mesophases is modified in order to compensate the space requirements of each of the elementary building blocks, namely, the [60]fullerene units, the cyanobiphenyl mesogens, and the dendritic matrix.
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Affiliation(s)
- Pauline Pieper
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
| | - Virginie Russo
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , 67034 CEDEX 2 Strasbourg , France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , 67034 CEDEX 2 Strasbourg , France
| | - Robert Deschenaux
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
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Kumar KS, Studniarek M, Heinrich B, Arabski J, Schmerber G, Bowen M, Boukari S, Beaurepaire E, Dreiser J, Ruben M. Engineering On-Surface Spin Crossover: Spin-State Switching in a Self-Assembled Film of Vacuum-Sublimable Functional Molecule. Adv Mater 2018; 30:1705416. [PMID: 29356142 DOI: 10.1002/adma.201705416] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/12/2017] [Indexed: 06/07/2023]
Abstract
The realization of spin-crossover (SCO)-based applications requires study of the spin-state switching characteristics of SCO complex molecules within nanostructured environments, especially on surfaces. Except for a very few cases, the SCO of a surface-bound thin molecular film is either quenched or heavily altered due to: (i) molecule-surface interactions and (ii) differing intermolecular interactions in films relative to the bulk. By fabricating SCO complexes on a weakly interacting surface, the interfacial quenching problem is tackled. However, engineering intermolecular interactions in thin SCO active films is rather difficult. Here, a molecular self-assembly strategy is proposed to fabricate thin spin-switchable surface-bound films with programmable intermolecular interactions. Molecular engineering of the parent complex system [Fe(H2 B(pz)2 )2 (bpy)] (pz = pyrazole, bpy = 2,2'-bipyridine) with a dodecyl (C12 ) alkyl chain yields a classical amphiphile-like functional and vacuum-sublimable charge-neutral FeII complex, [Fe(H2 B(pz)2 )2 (C12 -bpy)] (C12 -bpy = dodecyl[2,2'-bipyridine]-5-carboxylate). Both the bulk powder and 10 nm thin films sublimed onto either quartz glass or SiOx surfaces of the complex show comparable spin-state switching characteristics mediated by similar lamellar bilayer like self-assembly/molecular interactions. This unprecedented observation augurs well for the development of SCO-based applications, especially in molecular spintronics.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Michał Studniarek
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
- Swiss Light Source, Paul Scherrer Institut (PSI), CH-5232, Villigen, Switzerland
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Jacek Arabski
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Guy Schmerber
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Martin Bowen
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Samy Boukari
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Eric Beaurepaire
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
| | - Jan Dreiser
- Swiss Light Source, Paul Scherrer Institut (PSI), CH-5232, Villigen, Switzerland
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux (IPCMS), Université de Strasbourg, F-67034, Strasbourg, France
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
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Fouchet J, Heinrich B, L’Her M, Voirin E, Karmazin L, Bailly C, Welter R, Mirjafari A, Douce L. Heterogeneous microwave-assisted Ullmann type methodology for synthesis of rigid-core ionic liquid crystals. NEW J CHEM 2018. [DOI: 10.1039/c8nj01609g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present an efficient Ullmann-type synthesis methodology enabling the preparation of imidazolium compounds with an extended aromatic core in three steps.
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Affiliation(s)
- Julien Fouchet
- Université de Strasbourg
- CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- F-67000 Strasbourg
- France
| | - Benoît Heinrich
- Université de Strasbourg
- CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- F-67000 Strasbourg
- France
| | - Matthieu L’Her
- Université de Strasbourg
- CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- F-67000 Strasbourg
- France
| | - Emilie Voirin
- Université de Strasbourg
- CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- F-67000 Strasbourg
- France
| | - Lydia Karmazin
- Service de Radiocristallographie
- Fédération de Chimie Le Bel
- 67008 Strasbourg Cedex
- France
| | - Corinne Bailly
- Service de Radiocristallographie
- Fédération de Chimie Le Bel
- 67008 Strasbourg Cedex
- France
| | - Richard Welter
- Institut de Biologie Moléculaire des Plantes
- F-67000 Strasbourg
- France
| | - Arsalan Mirjafari
- Department of Chemistry and Physics
- Florida Gulf Coast University
- Fort Myers
- USA
| | - Laurent Douce
- Université de Strasbourg
- CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- F-67000 Strasbourg
- France
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Peltier JD, Heinrich B, Donnio B, Jeannin O, Rault-Berthelot J, Poriel C. Modulating the Physical and Electronic Properties over Positional Isomerism: The Dispirofluorene-Dihydroindacenodithiophene (DSF-IDT) Family. Chemistry 2017; 23:17290-17303. [DOI: 10.1002/chem.201703320] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 01/09/2023]
Affiliation(s)
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504; CNRS-Université de Strasbourg; 23 rue du Loess, BP 43 67034 Strasbourg Cédex 2 France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504; CNRS-Université de Strasbourg; 23 rue du Loess, BP 43 67034 Strasbourg Cédex 2 France
| | - Olivier Jeannin
- UMR CNRS 6226-ISCR; Université de Rennes 1; 35042 Rennes cedex France
| | | | - Cyril Poriel
- UMR CNRS 6226-ISCR; Université de Rennes 1; 35042 Rennes cedex France
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Gainar A, Tzeng MC, Heinrich B, Donnio B, Bruce DW. Incompatibility-Driven Self-Organization in Polycatenar Liquid Crystals Bearing Both Hydrocarbon and Fluorocarbon Chains. J Phys Chem B 2017; 121:8817-8828. [PMID: 28829604 DOI: 10.1021/acs.jpcb.7b04490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and liquid crystal properties are reported for tri- and tetra-catenar mesogens in which both hydrocarbon and semiperfluorocarbon chains have been incorporated. In the tricatenar mesogens, the lamellar spacing in the smectic C phase of the all-hydrocarbon mesogen almost doubles when the isolated hydrocarbon chain is replaced by a semiperfluorinated chain on account of the localized segregation in different sublayers between the two chain types. In the tetracatenar materials, the replacement of at least one hydrocarbon chain by semiperfluorocarbon chains is sufficient to promote columnar phase formation, but when the molecule has two hydrocarbon chains at one end and two semiperfluorocarbon chains at the other, the requirement for localized phase segregation leads to the formation of a rectangular phase with very large lattice parameters. The juxtaposition of terminal chains of different nature within the same molecular structure thus leads to a reduction in mesophase symmetry and the emergence of more complex supramolecular organization.
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Affiliation(s)
- Adrian Gainar
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
| | - Mei-Chun Tzeng
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR 7504) , 23 rue du Loess BP 43, 67034 Strasbourg Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR 7504) , 23 rue du Loess BP 43, 67034 Strasbourg Cedex 2, France
| | - Duncan W Bruce
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
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50
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Nestor ST, Heinrich B, Sykora RA, Zhang X, McManus GJ, Douce L, Mirjafari A. Methimazolium-based ionic liquid crystals: Emergence of mesomorphic properties via a sulfur motif. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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