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Trippmacher S, Demeshko S, Prescimone A, Meyer F, Wenger OS, Wang C. Ferromagnetically Coupled Chromium(III) Dimer Shows Luminescence and Sensitizes Photon Upconversion. Chemistry 2024; 30:e202400856. [PMID: 38523568 DOI: 10.1002/chem.202400856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 03/26/2024]
Abstract
There has been much progress on mononuclear chromium(III) complexes featuring luminescence and photoredox activity, but dinuclear chromium(III) complexes have remained underexplored in these contexts until now. We identified a tridentate chelate ligand able to accommodate both meridional and facial coordination of chromium(III), to either access a mono- or a dinuclear chromium(III) complex depending on reaction conditions. This chelate ligand causes tetragonally distorted primary coordination spheres around chromium(III) in both complexes, entailing comparatively short excited-state lifetimes in the range of 400 to 800 ns in solution at room temperature and making photoluminescence essentially oxygen insensitive. The two chromium(III) ions in the dimer experience ferromagnetic exchange interactions that result in a high spin (S=3) ground state with a coupling constant of +9.3 cm-1. Photoinduced energy transfer from the luminescent ferromagnetically coupled dimer to an anthracene derivative results in sensitized triplet-triplet annihilation upconversion. Based on these proof-of-principle studies, dinuclear chromium(III) complexes seem attractive for the development of fundamentally new types of photophysics and photochemistry enabled by magnetic exchange interactions.
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Affiliation(s)
- Simon Trippmacher
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Serhiy Demeshko
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077, Göttingen, Germany
| | - Alessandro Prescimone
- Department of Chemistry, BPR 1096, University of Basel, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077, Göttingen, Germany
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Cui Wang
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
- Department of Biology and Chemistry, Osnabrück University, Barbarastraße 7, 49076, Osnabrück, Germany
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2
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Kress C, Sidler E, Downey P, Zwick P, Fuhr O, Fenske D, Bernhard S, Mayor M. Circularly Polarized Luminescence of Thiophene-Bridged Macrocyclic pseudo-meta [2.2]Paracyclophanes. Chemistry 2024; 30:e202303798. [PMID: 38214886 DOI: 10.1002/chem.202303798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/13/2024]
Abstract
Chiral organic molecules possessing high quantum yields, circular dichroism, and circularly polarized luminescence values have great potential as optically active materials for future applications. Recently, the identification of a promising class of inherently chiral compounds was reported, namely macrocyclic 1,3-butadiyne-linked pseudo-meta[2.2]paracyclophanes, displaying high circular dichroism and related gabs values albeit modest quantum yields. Increasing the quantum yields in an attempt to get bright circularly polarized light emitters, the high-yielding heterocyclization of those 1,3-butadiyne bridges resulting in macrocyclic 2,5-thienyls-linked pseudo-meta [2.2]paracyclophanes is herein described. The chiroptical properties of both, the previously reported 1,3-butadiyne, and the novel 2,5-thienyl bridged macrocycles of various sizes, are experimentally recorded, and theoretically described using density-functional theory.
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Affiliation(s)
- Charlotte Kress
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Eric Sidler
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Payton Downey
- Department of Chemistry, Carnegie Mellon University, 15213, Pittsburgh, Pennsylvania, USA
| | - Patrick Zwick
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Olaf Fuhr
- Institute for Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
- Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Dieter Fenske
- Institute for Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Stefan Bernhard
- Department of Chemistry, Carnegie Mellon University, 15213, Pittsburgh, Pennsylvania, USA
| | - Marcel Mayor
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
- Institute for Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
- Lehn Institute of Functional Materials (LIFM), School of Chemistry, Sun Yat-Sen University (SYSU), 510275, Guangzhou, China
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3
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Wang Z, Li J, Liu R, Jia X, Liu H, Xie T, Chen H, Pan L, Ma Z. Synthesis, characterization and anticancer properties: A series of highly selective palladium(II) substituted-terpyridine complexes. J Inorg Biochem 2023; 244:112219. [PMID: 37058991 DOI: 10.1016/j.jinorgbio.2023.112219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/16/2023]
Abstract
Ten new palladium(II) complexes [PdCl(L1-10)]Cl have been synthesized by the reaction of palladium(II) chloride and ten 4'-(substituted-phenyl)-2,2':6',2''-terpyridine ligands bearing hydrogen(L1), p-hydroxyl(L2), m-hydroxyl (L3), o-hydroxyl (L4), methyl (L5), phenyl (L6), fluoro (L7), chloro (L8), bromo (L9), or iodo (L10). Their structures were confirmed by FT-IR, 1H NMR, elemental analysis and/or single crystal X-ray diffraction analysis. Their in vitro anticancer activities were investigated based on five cell lines, including four cancer cell lines (A549, Eca-109, Bel-7402, MCF-7) and one normal cell line (HL-7702). The results show that these complexes possess a strong killing effect on the cancer cells but a weak proliferative inhibition on the normal cells, implying their high inhibitory selectivity for the proliferation of the cancer cell lines. Flow cytometry characterization reveals that these complexes affect cell proliferation mainly in the G0/G1 phase and induce the late apoptotic of the cells. The quantity of palladium(II) ion in extracted DNA was determined by ICP-MS, which proved that these complexes target genomic DNA. And the strong affinity of the complexes with CT-DNA were confirmed by UV-Vis spectrum and circular dichroism (CD). The possible binding modes of the complexes with DNA were further explored by molecular docking. As the concentration of complexes 1-10 gradually increases, the fluorescence intensity of bovine serum albumin (BSA) decreases by a static quenching mechanism.
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Affiliation(s)
- Zhiyuan Wang
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China
| | - Jiahe Li
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China; National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, Guangxi, People's Republic of China
| | - Rongping Liu
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China
| | - Xinjie Jia
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China
| | - Hongming Liu
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China
| | - Tisan Xie
- School of Animal Science and Technology, Guangxi University, 530004, Nanning, Guangxi, People's Republic of China
| | - Hailan Chen
- School of Animal Science and Technology, Guangxi University, 530004, Nanning, Guangxi, People's Republic of China; Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, Guangxi, People's Republic of China.
| | - Lixia Pan
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, Guangxi, People's Republic of China.
| | - Zhen Ma
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China.
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4
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D'Addio A, Malinčik J, Fuhr O, Fenske D, Häussinger D, Mayor M. Geländer Molecules with Orthogonal Joints: Synthesis of Macrocyclic Dimers. Chemistry 2022; 28:e202201678. [PMID: 35856176 PMCID: PMC9804589 DOI: 10.1002/chem.202201678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 01/05/2023]
Abstract
Orthogonal joints, understood as connections with an angle of 90°, were introduced in the design of the "Geländer" model compounds 1 and 2. The banister, consisting of a conjugated carbazole dimer linked by either 1,3-butadiyne (2) or a single thiophene (1), wraps around an axis composed of a phthalimide dimer due to the dimensional mismatch of both subunits, which are interconnected by phenylene rungs. The "Geländer" structure was assembled from a monomer comprising the 1,4-diaminobenzene rung with one amino substituent as part of a 4-bromo phthalimide subunit forming the orthogonal junction to the axis, and the other as part of a masked 2-ethynyl carbazole as orthogonal joint to the banister. The macrocycle was obtained by two sequential homocoupling steps. A first dimerization by a reductive homocoupling assembled the axis, while an oxidative acetylene coupling served as ring-closing reaction. The formed butadiyne was further derivatized to a thiophene, rendering all carbons of the model compound sp2 hybridized. Both helical structures were fully characterized and chirally resolved. Assignment of the enantiomers was achieved by simulation of chiroptical properties and enantiopure synthesis.
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Affiliation(s)
- Adriano D'Addio
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Juraj Malinčik
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Olaf Fuhr
- Institute for Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi)Karlsruhe Institute of Technology (KIT)P. O. Box 364076021Karlsruhe Eggenstein-LeopoldshafenGermany
| | - Dieter Fenske
- Institute for Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi)Karlsruhe Institute of Technology (KIT)P. O. Box 364076021Karlsruhe Eggenstein-LeopoldshafenGermany
| | - Daniel Häussinger
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Marcel Mayor
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland,Institute for Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi)Karlsruhe Institute of Technology (KIT)P. O. Box 364076021Karlsruhe Eggenstein-LeopoldshafenGermany,Lehn Institute of Functional Materials(LIFM)School of ChemistrySun Yat-Sen University (SYSU)Guangzhou510275 (P.R. ofChina
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5
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Zeghouan O, Mahesha, Sellami S, Kashi I, Bouchameni C, Lokanath N. Analysis of structural conformation and supramolecular self-assembly of novel oxalate-bridged tetranuclear Cu(II) complex by combined crystallographic and computational studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Kožíšek J, Svoboda J, Zedník J, Vlčková B, Šloufová I. Resonance Raman Excitation Profiles of Fe(II)-Terpyridine Complexes: Electronic Effects of Ligand Modifications. J Phys Chem B 2021; 125:12847-12858. [PMID: 34758623 DOI: 10.1021/acs.jpcb.1c08366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal 2,2':6',2″-terpyridine (tpy) complexes are readily used as building blocks in metallo-supramolecular polymers that stand out for their photophysical properties in solar energy assemblies. Furthermore, Resonance Raman (RR) excitation profiles are sensitive indicators of the electronic properties of chromophores. Previously, using RR spectroscopy, we studied the [Fe(tpy)2]2+ complex and metallo-supramolecular polymers formed by tpy derivatives and Fe(II) ions. Here, we compare RR spectra of iron (Fe(II)) complexes with 4'-substituted tpy ligands─[Fe(4'-R-tpy)2]2+, with R = H (1a), Cl (2a), 4-chlorophenyl (3a), and 2-thienyl (4a) to describe changes in their electronic structure after functionalization. By combining theoretical calculations, RR, and UV/vis spectra, we elucidated differences in the RR excitation profiles of 1a, 2a, and 4a complexes. In all Raman modes, complexes 1a and 2a showed maximal enhancement only at 532 nm excitation, whereas complex 4a exhibited maximal enhancement selectively at either 532 or 633 nm excitations. Based on our calculations, the mixed metal/ligand character of the highest occupied molecular orbital (HOMO) of 4a complex manifests itself through selective enhancement of vibration modes, mainly localized on the 2-thienyl unit at 633 nm excitation, which may explain the unique behavior of this complex. Therefore, complex 4a is a prospective candidate for further detailed photophysical explorations toward developing sensitizers for solar cells.
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Affiliation(s)
- Jan Kožíšek
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Jan Svoboda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Jiří Zedník
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Blanka Vlčková
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Ivana Šloufová
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
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7
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Bannwart LM, Müntener T, Rickhaus M, Jundt L, Häussinger D, Mayor M. Bicyclic Phenyl-Ethynyl Architectures: Synthesis of a 1,4-Bis(phenylbuta-1,3-diyn-1-yl) Benzene Banister. Chemistry 2021; 27:6295-6307. [PMID: 33502051 PMCID: PMC8048618 DOI: 10.1002/chem.202005207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Indexed: 01/09/2023]
Abstract
The novel diacetylene bridged terphenylic macrocycle 1 is presented and discussed in the context of rotationally restricted "Geländer" oligomers. The 1,4-bis(phenylbuta-1,3-diyn-1-yl) benzene bridge of diacetylene 1 is significantly longer than its terphenyl backbone, forcing the bridge to bend around the central pylon. The synthesis of molecule 1 is based to a large extent on acetylene scaffolding strategies, profiting from orthogonal alkyne protection groups to close both macrocyclic subunits by oxidative acetylene coupling sequentially. The spatial arrangement and the dynamic enantiomerization process of the bicyclic target structure 1 are analyzed. In-depth NMR investigations not only reveal an unexpected spatial arrangement with both oligomer strands bent alongside the backbone, but also display the limited stability of the model compound in the presence of molecular oxygen.
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Affiliation(s)
- Linda Maria Bannwart
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Thomas Müntener
- BiozentrumUniversity of BaselKlingelbergstrasse 704056BaselSwitzerland
| | - Michel Rickhaus
- Department of ChemistryUniversity of ZurichWinterthurerstrasse 1908057ZurichSwitzerland
| | - Lukas Jundt
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Daniel Häussinger
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Marcel Mayor
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
- Institute for Nanotechnology (INT)Karlsruhe Institute of Technology (KIT)P. O. Box 364076021KarlsruheGermany
- Lehn Institute of Functional Materials (LIFM)School of ChemistrySun Yat-Sen University (SYSU)Guangzhou510275P. R. China
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8
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Brandl T, Johannsen S, Häussinger D, Suryadevara N, Prescimone A, Bernhard S, Gruber M, Ruben M, Berndt R, Mayor M. Iron in a Cage: Fixation of a Fe(II)tpy 2 Complex by Fourfold Interlinking. Angew Chem Int Ed Engl 2020; 59:15947-15952. [PMID: 32412664 PMCID: PMC7540000 DOI: 10.1002/anie.202006340] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 11/18/2022]
Abstract
The coordination sphere of the Fe(II) terpyridine complex 1 is rigidified by fourfold interlinking of both terpyridine ligands. Profiting from an octa-aldehyde precursor complex, the ideal dimensions of the interlinking structures are determined by reversible Schiff-base formation, before irreversible Wittig olefination provided the rigidified complex. Reversed-phase HPLC enables the isolation of the all-trans isomer of the Fe(II) terpyridine complex 1, which is fully characterized. While temperature independent low-spin states were recorded with superconducting quantum interference device (SQUID) measurements for both, the open precursor 8 and the interlinked complex 1, evidence of the increased rigidity of the ligand sphere in 1 was provided by proton T2 relaxation NMR experiments. The ligand sphere fixation in the macrocyclized complex 1 even reaches a level resisting substantial deformation upon deposition on an Au(111) surface, as demonstrated by its pristine form in a low temperature ultra-high vacuum scanning tunneling microscope experiment.
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Affiliation(s)
- Thomas Brandl
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Sven Johannsen
- Institut für Experimentelle und Angewandte PhysikChristian-Albrechts-Universität zu KielLeibnizstr. 1924098KielGermany
| | - Daniel Häussinger
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Nithin Suryadevara
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | | | - Stefan Bernhard
- Department of ChemistryCarnegie Mellon UniversityPittsburghPA15213USA
| | - Manuel Gruber
- Institut für Experimentelle und Angewandte PhysikChristian-Albrechts-Universität zu KielLeibnizstr. 1924098KielGermany
| | - Mario Ruben
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)CNRS-Université de Strasbourg23, rue de Loess, BP 4367034Strasbourg cedex 2France
| | - Richard Berndt
- Institut für Experimentelle und Angewandte PhysikChristian-Albrechts-Universität zu KielLeibnizstr. 1924098KielGermany
| | - Marcel Mayor
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
- Institute of NanotechnologyKarlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen UniversityGuangzhou510275China
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9
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Brandl T, Johannsen S, Häussinger D, Suryadevara N, Prescimone A, Bernhard S, Gruber M, Ruben M, Berndt R, Mayor M. Iron in a Cage: Fixation of a Fe(II)tpy
2
Complex by Fourfold Interlinking. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas Brandl
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Sven Johannsen
- Institut für Experimentelle und Angewandte Physik Christian-Albrechts-Universität zu Kiel Leibnizstr. 19 24098 Kiel Germany
| | - Daniel Häussinger
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Nithin Suryadevara
- Institute of Nanotechnology Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Alessandro Prescimone
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Stefan Bernhard
- Department of Chemistry Carnegie Mellon University Pittsburgh PA 15213 USA
| | - Manuel Gruber
- Institut für Experimentelle und Angewandte Physik Christian-Albrechts-Universität zu Kiel Leibnizstr. 19 24098 Kiel Germany
| | - Mario Ruben
- Institute of Nanotechnology Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) CNRS-Université de Strasbourg 23, rue de Loess, BP 43 67034 Strasbourg cedex 2 France
| | - Richard Berndt
- Institut für Experimentelle und Angewandte Physik Christian-Albrechts-Universität zu Kiel Leibnizstr. 19 24098 Kiel Germany
| | - Marcel Mayor
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
- Institute of Nanotechnology Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
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10
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Brandl T, Kerzig C, Le Pleux L, Prescimone A, Wenger OS, Mayor M. Improved Photostability of a Cu I Complex by Macrocyclization of the Phenanthroline Ligands. Chemistry 2020; 26:3119-3128. [PMID: 31794079 PMCID: PMC7079024 DOI: 10.1002/chem.201904754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/30/2019] [Indexed: 11/12/2022]
Abstract
The development of molecular materials for conversion of solar energy into electricity and fuels is one of the most active research areas, in which the light absorber plays a key role. While copper(I)‐bis(diimine) complexes [CuI(L)2]+ are considered as potent substitutes for [RuII(bpy)3]2+, they exhibit limited structural integrity as ligand loss by substitution can occur. In this article, we present a new concept to stabilize copper bis(phenanthroline) complexes by macrocyclization of the ligands which are preorganized around the CuI ion. Using oxidative Hay acetylene homocoupling conditions, several CuI complexes with varying bridge length were prepared and analyzed. Absorption and emission properties are assessed; rewardingly, the envisioned approach was successful since the flexible 1,4‐butadiyl‐bridged complex does show enhanced MLCT absorption and emission, as well as improved photostability upon irradiation with a blue LED compared to a reference complex.
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Affiliation(s)
- Thomas Brandl
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Christoph Kerzig
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Loïc Le Pleux
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Alessandro Prescimone
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Marcel Mayor
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland.,Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlsruhe, Germany.,Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
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11
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Chun MK, Cho J, Jeong AR, Min KS, Jeong JH. Tetrahedral Zinc(II) Complexes with Chiral Diamine Ligands: Synthesis, Characterization, and Photoluminescence. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Kyung Chun
- Department of Chemistry and Green‐Nano Materials Research CenterKyungpook National University Daegu 41566 Republic of Korea
| | - Juhyun Cho
- Department of Chemistry and Green‐Nano Materials Research CenterKyungpook National University Daegu 41566 Republic of Korea
| | - Ah Rim Jeong
- Department of Chemistry and Green‐Nano Materials Research CenterKyungpook National University Daegu 41566 Republic of Korea
| | - Kil Sik Min
- Department of Chemistry Education and Green‐Nano Materials Research CenterKyungpook National University Daegu 41566 Republic of Korea
| | - Jong Hwa Jeong
- Department of Chemistry and Green‐Nano Materials Research CenterKyungpook National University Daegu 41566 Republic of Korea
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12
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Jiménez JR, Doistau B, Cruz CM, Besnard C, Cuerva JM, Campaña AG, Piguet C. Chiral Molecular Ruby [Cr(dqp)2]3+ with Long-Lived Circularly Polarized Luminescence. J Am Chem Soc 2019; 141:13244-13252. [DOI: 10.1021/jacs.9b06524] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Juan-Ramón Jiménez
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Carlos M. Cruz
- Departamento de Quı́mica Orgánica, Unidad de Excelencia de Quı́mica Aplicada a Biomedicina y Medioambiente, Universidad de Granada, Avda. Fuentenueva, E-18071 Granada, España
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, 24 Quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Juan M. Cuerva
- Departamento de Quı́mica Orgánica, Unidad de Excelencia de Quı́mica Aplicada a Biomedicina y Medioambiente, Universidad de Granada, Avda. Fuentenueva, E-18071 Granada, España
| | - Araceli G. Campaña
- Departamento de Quı́mica Orgánica, Unidad de Excelencia de Quı́mica Aplicada a Biomedicina y Medioambiente, Universidad de Granada, Avda. Fuentenueva, E-18071 Granada, España
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai E. Ansermet, CH-1211 Geneva 4, Switzerland
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13
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Abstract
A new thiophene-substituted terpyridine derivative has been prepared and characterized. This ligand features a thiophene heterocycle (as an electrochemically polymerizable unit) as well as two chlorine atoms for further functionalization.
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14
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Agosti A, Kuna E, Bergamini G. Divergent Terpyridine-Based Coordination for the Construction of Photoactive Supramolecular Structures. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801263] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Amedeo Agosti
- Department of Chemistry “Giacomo Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Ewelina Kuna
- Department of Chemistry “Giacomo Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Giacomo Bergamini
- Department of Chemistry “Giacomo Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
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15
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Weiland KJ, Münch N, Gschwind W, Häussinger D, Mayor M. A Chiral Macrocyclic Oligothiophene with Broken Conjugation – Rapid Racemization through Internal Rotation. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201800205] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kevin J. Weiland
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Nathalia Münch
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Wanja Gschwind
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Daniel Häussinger
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Marcel Mayor
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
- Institute for Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) P. O. Box 3640 76021 Karlsruhe Germany
- Lehn Institute of Functional Materials, School of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
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