1
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Garrido M, Naranjo A, Pérez EM. Characterization of emerging 2D materials after chemical functionalization. Chem Sci 2024; 15:3428-3445. [PMID: 38455011 PMCID: PMC10915849 DOI: 10.1039/d3sc05365b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/07/2024] [Indexed: 03/09/2024] Open
Abstract
The chemical modification of 2D materials has proven a powerful tool to fine tune their properties. With this motivation, the development of new reactions has moved extremely fast. The need for speed, together with the intrinsic heterogeneity of the samples, has sometimes led to permissiveness in the purification and characterization protocols. In this review, we present the main tools available for the chemical characterization of functionalized 2D materials, and the information that can be derived from each of them. We then describe examples of chemical modification of 2D materials other than graphene, focusing on the chemical description of the products. We have intentionally selected examples where an above-average characterization effort has been carried out, yet we find some cases where further information would have been welcome. Our aim is to bring together the toolbox of techniques and practical examples on how to use them, to serve as guidelines for the full characterization of covalently modified 2D materials.
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2
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Artem'ev AV, Liu CW. Recent progress in dichalcophosphate coinage metal clusters and superatoms. Chem Commun (Camb) 2023. [PMID: 37184074 DOI: 10.1039/d3cc01215h] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Atomically precise clusters of group 11 metals (Cu, Ag, and Au) attract considerable attention owing to their remarkable structure and fascinating properties. One of the unique subclasses of these clusters is based on dichalcophosphate ligands of [(RO)2PE2]- type (E = S or Se, and R = alkyl). These ligands successfully stabilise the most diverse Cu, Ag, and Au clusters and superatoms, spanning from simple ones to amazing assemblies featuring unusual structural and bonding patterns. It is noteworthy that such complicated clusters are assembled directly from cheap and simple reagents, metal(I) salts and dichalcophosphate anions. This reaction, when performed in the presence of a hydride or other anion sources, or foreign metal ions, results in hydrido- or anion-templated homo- or heteronuclear structures. In this feature article, we survey the recent advances in this exciting field, highlighting the powerful synthetic capabilities of the system "a metal(I) salt - [(RO)2PX2]- ligands - a templating anion or borohydride" as an inexhaustible platform for the creation of new atomically precise clusters, superatoms, and nanoalloys.
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Affiliation(s)
- Alexander V Artem'ev
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russian Federation
| | - C W Liu
- National Dong Hwa University, Department of Chemistry, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan, Republic of China.
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3
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Liu YH, Li CC, Cheng WK, Li YH, Lin RY, Shieh M. Paramagnetic Semiconducting Se–Mn Clusters: A Mn 3Se 4-Stabilized Selenide Radical Intermediate and Its Aggregated Derivatives. Inorg Chem 2022; 61:20433-20444. [DOI: 10.1021/acs.inorgchem.2c03080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yu-Hsin Liu
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
| | - Cai-Cen Li
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
| | - Wen-Kai Cheng
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
| | - Yu-Huei Li
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
| | - Ru Yan Lin
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
| | - Minghuey Shieh
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan116325, Republic of China
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4
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Oxalato as polyatomic coordination center and magnetic coupler in copper(II)-polypyrazole inverse polynuclear complexes and coordination polymers. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Della Pergola R, Garlaschelli L, Macchi P, Facchinetti I, Ruffo R, Racioppi S, Sironi A. From Small Metal Clusters to Molecular Nanoarchitectures with a Core-Shell Structure: The Synthesis, Redox Fingerprint, Theoretical Analysis, and Solid-State Structure of [Co 38As 12(CO) 50] 4. Inorg Chem 2022; 61:9888-9896. [PMID: 35731613 PMCID: PMC9937531 DOI: 10.1021/acs.inorgchem.2c00506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The cluster [Co38As12(CO)50]4- was obtained by pyrolysis of [Co6As(CO)16]-. The metal cage features a closed-packed core inside a Co/As shell that progressively deforms from a cubic face-centered symmetry. The redox and acid-base reactivities were determined by cyclic voltammetry and spectrophotometric titrations. The calculated electron density revealed the shell-constrained distribution of the atomic charges, induced by the presence of arsenic.
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Affiliation(s)
- Roberto Della Pergola
- Dipartimento
di Scienze dell’Ambiente e della Terra, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy,
| | - Luigi Garlaschelli
- Dipartimento
di Chimica, University of Milano, via Venezian 21, 20133 Milano, Italy
| | - Piero Macchi
- Department
of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
| | - Irene Facchinetti
- Dipartimento
di Scienze dei Materiali, University of
Milano-Bicocca, via Cozzi
5, 20126 Milano, Italy
| | - Riccardo Ruffo
- Dipartimento
di Scienze dei Materiali, University of
Milano-Bicocca, via Cozzi
5, 20126 Milano, Italy
| | - Stefano Racioppi
- Dipartimento
di Chimica, University of Milano, via Venezian 21, 20133 Milano, Italy,Department
of Chemistry, State University of New York
at Buffalo, Buffalo, New York 14260-3000, United states
| | - Angelo Sironi
- Dipartimento
di Chimica, University of Milano, via Venezian 21, 20133 Milano, Italy,
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6
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Krupiński P, Terlecki M, Kornowicz A, Justyniak I, Prochowicz D, van Leusen J, Kögerler P, Lewiński J. Tetrahedral M 4(μ 4-O) Motifs Beyond Zn: Efficient One-Pot Synthesis of Oxido-Amidate Clusters via a Transmetalation/Hydrolysis Approach. Inorg Chem 2022; 61:7869-7877. [PMID: 35536182 PMCID: PMC9131453 DOI: 10.1021/acs.inorgchem.2c00456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
While zinc μ4-oxido-centered complexes are widely used as versatile precursors and building units of functional materials, the synthesis of their analogues based on other transition metals is highly underdeveloped. Herein, we present the first efficient systematic approach for the synthesis of homometallic [M4(μ4-O)L6]-type clusters incorporating divalent transition-metal centers, coated by bridging monoanionic organic ligands. As a proof of concept, we prepared a series of charge-neutral metal-oxido benzamidates, [M4(μ4-O) (NHCOPh)6] (M = Fe, Co, Zn), including iron(II) and cobalt(II) clusters not accessible before. The resulting complexes were characterized using elemental analysis, FTIR spectroscopy, magnetic measurements, and single-crystal X-ray diffraction. Detailed structural analysis showed interesting self-assembly of the tetrahedral clusters into 2D honeycomb-like supramolecular layers driven by hydrogen bonds in the proximal secondary coordination sphere. Moreover, we modeled the magnetic properties of new iron (II) and cobalt (II) clusters, which display a general tendency for antiferromagnetic coupling of the μ4-O/μ-benzamidate-bridged metal centers. The developed synthetic procedure is potentially easily extensible to other M(II)-oxido systems, which will likely pave the way to new oxido clusters with interesting optoelectronic and self-assembly properties and, as a result, will allow for the development of new functional materials not achievable before.
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Affiliation(s)
- Piotr Krupiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Michał Terlecki
- Faculty of Chemistry, Warsaw University of Technology, Noakowsiego 3, 00-664 Warsaw, Poland
| | - Arkadiusz Kornowicz
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Iwona Justyniak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Daniel Prochowicz
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Jan van Leusen
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Paul Kögerler
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Janusz Lewiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.,Faculty of Chemistry, Warsaw University of Technology, Noakowsiego 3, 00-664 Warsaw, Poland
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7
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Haiduc I. Inverse coordination complexes with oxoanions as centroligands. A review of topologies. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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Rabelo R, Castellano M, Barros WP, Carbonell-Vilar JM, Viciano-Chumillas M, Lloret F, Julve M, Pasán J, Cañadillas-Delgado L, Ruiz-García R, Cano J. Molecular engineering of an inverse hexacopper(II) coordination complex with a photoactive metallacyclophane centroligand as prototype of a magnetic photoswitch†. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Terlecki M, Sobczak S, Leszczyński MK, Katrusiak A, Lewiński J. Stepwise Stress-Induced Transformations of Metal-Organic Polyhedral Cluster-Based Assemblies: Where Conformational and Supramolecular Features Meet. Chemistry 2021; 27:13757-13764. [PMID: 34297436 DOI: 10.1002/chem.202101732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 11/10/2022]
Abstract
Understanding the factors governing the formation of supramolecular structures and phase transitions between various forms of molecular crystals is pivotal for developing dynamic, stimuli-responsive materials and polymorph-controlled syntheses. Here, we investigate the pressure-induced dynamic of both the intrinsic molecular structure and the supramolecular network of a predesigned polyhedral oxo-centered zinc cluster incorporating monoanionic N,N'-diphenylformamidinate and featuring N-bonded phenyl groups in close proximity to the primary coordination sphere. We demonstrate that the model oxo cluster is prone to undergoing pressure-induced conformational transformations of the secondary coordination sphere and simultaneous stepwise (initially every second polyhedral molecule undergoes the conformational transformations) and reversible transitions from an ambient phase α to high-pressure phases β and γ, as single-crystal-to-single-crystal events. The observed phase transitions illustrate the key role of an interplay between the low-energy conformation perturbations and cooperative intra- and intermolecular noncovalent interactions.
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Affiliation(s)
- Michał Terlecki
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Szymon Sobczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznanskiego 8, 61-614, Poznań, Poland
| | - Michał K Leszczyński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.,Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznanskiego 8, 61-614, Poznań, Poland
| | - Janusz Lewiński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.,Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
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10
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Terlecki M, Justyniak I, Leszczyński MK, Lewiński J. Effect of the proximal secondary sphere on the self-assembly of tetrahedral zinc-oxo clusters. Commun Chem 2021; 4:133. [PMID: 36697595 PMCID: PMC9814604 DOI: 10.1038/s42004-021-00574-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/01/2021] [Indexed: 01/28/2023] Open
Abstract
Metal-oxo clusters can serve as directional and rigid building units of coordination and noncovalent supramolecular assemblies. Therefore, an in-depth understanding of their multi-faceted chemistry is vital for the development of self-assembled solid-state structures of desired properties. Here we present a comprehensive comparative structural analysis of isostructural benzoate, benzamidate, and new benzamidinate zinc-oxo clusters incorporating the [O,O]-, [O,NH]- and [NH,NH]-anchoring donor centers, respectively. We demonstrated that the NH groups in the proximal secondary coordination sphere are prone to the formation of intermolecular hydrogen bonds, which affects the packing of clusters in the crystal structure. Coordination sphere engineering can lead to the rational design of new catalytic sites and novel molecular building units of supramolecular assemblies.
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Affiliation(s)
- Michał Terlecki
- grid.1035.70000000099214842Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Iwona Justyniak
- grid.413454.30000 0001 1958 0162Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Michał K. Leszczyński
- grid.1035.70000000099214842Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland ,grid.413454.30000 0001 1958 0162Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Janusz Lewiński
- grid.1035.70000000099214842Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland ,grid.413454.30000 0001 1958 0162Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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11
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Zhong YJ, Liao JH, Chiu TH, Wen YS, Liu CW. A New Synthetic Methodology in the Preparation of Bimetallic Chalcogenide Clusters via Cluster-to-Cluster Transformations. Molecules 2021; 26:molecules26175391. [PMID: 34500825 PMCID: PMC8433971 DOI: 10.3390/molecules26175391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/28/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022] Open
Abstract
A decanuclear silver chalcogenide cluster, [Ag10(Se){Se2P(OiPr)2}8] (2) was isolated from a hydride-encapsulated silver diisopropyl diselenophosphates, [Ag7(H){Se2P(OiPr)2}6], under thermal condition. The time-dependent NMR spectroscopy showed that 2 was generated at the first three hours and the hydrido silver cluster was completely consumed after thirty-six hours. This method illustrated as cluster-to-cluster transformations can be applied to prepare selenide-centered decanuclear bimetallic clusters, [CuxAg10-x(Se){Se2P(OiPr)2}8] (x = 0-7, 3), via heating [CuxAg7-x(H){Se2P(OiPr)2}6] (x = 1-6) at 60 °C. Compositions of 3 were accurately confirmed by the ESI mass spectrometry. While the crystal 2 revealed two un-identical [Ag10(Se){Se2P(OiPr)2}8] structures in the asymmetric unit, a co-crystal of [Cu3Ag7(Se){Se2P(OiPr)2}8]0.6[Cu4Ag6(Se){Se2P(OiPr)2}8]0.4 ([3a]0.6[3b]0.4) was eventually characterized by single-crystal X-ray diffraction. Even though compositions of 2, [3a]0.6[3b]0.4 and the previous published [Ag10(Se){Se2P(OEt)2}8] (1) are quite similar (10 metals, 1 Se2-, 8 ligands), their metal core arrangements are completely different. These results show that different synthetic methods by using different starting reagents can affect the structure of the resulting products, leading to polymorphism.
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Affiliation(s)
- Yu-Jie Zhong
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Yuh-Sheng Wen
- Institute of Chemistry, Academia Sinica, Taipei 11528, Taiwan;
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
- Correspondence: ; Tel.: +886-3-890-3607
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12
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Al Isawi WA, Mezei G. Doubling the Carbonate-Binding Capacity of Nanojars by the Formation of Expanded Nanojars. Molecules 2021; 26:3083. [PMID: 34064130 PMCID: PMC8196769 DOI: 10.3390/molecules26113083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022] Open
Abstract
Anion binding and extraction from solutions is currently a dynamic research topic in the field of supramolecular chemistry. A particularly challenging task is the extraction of anions with large hydration energies, such as the carbonate ion. Carbonate-binding complexes are also receiving increased interest due to their relevance to atmospheric CO2 fixation. Nanojars are a class of self-assembled, supramolecular coordination complexes that have been shown to bind highly hydrophilic anions and to extract even the most hydrophilic ones, including carbonate, from water into aliphatic solvents. Here we present an expanded nanojar that is able to bind two carbonate ions, thus doubling the previously reported carbonate-binding capacity of nanojars. The new nanojar is characterized by detailed single-crystal X-ray crystallographic studies in the solid state and electrospray ionization mass spectrometric (including tandem MS/MS) studies in solution.
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Affiliation(s)
| | - Gellert Mezei
- Department of Chemistry, Western Michigan University, Kalamazoo, MI 49008, USA;
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13
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Coordination Behavior of [Cp″ 2Zr(µ 1:1-As 4)] towards Lewis Acids. Molecules 2021; 26:molecules26102966. [PMID: 34067648 PMCID: PMC8156824 DOI: 10.3390/molecules26102966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 11/22/2022] Open
Abstract
The functionalization of the arsenic transfer reagent [Cp″2Zr(η1:1-As4)] (1) focuses on modifying its properties and enabling a broader scope of reactivity. The coordination behavior of 1 towards different Lewis-acidic transition metal complexes and main group compounds is investigated by experimental and computational studies. Depending on the steric requirements of the Lewis acids and the reaction temperature, a variety of new complexes with different coordination modes and coordination numbers could be synthesized. Depending on the Lewis acid (LA) used, a mono-substitution in [Cp″2Zr(µ,η1:1:1:1-As4)(LA)] (LA = Fe(CO)4 (4); B(C6F5)3 (7)) and [Cp″2Zr(µ,η3:1:1-As4)(Fe(CO)3)] (5) or a di-substitution [Cp″2Zr(µ3,η1:1:1:1-As4)(LA)2] (LA = W(CO)5 (2); CpMn(CO)2 (3); AlR3 (6, R = Me, Et, iBu)) are monitored. In contrast to other coordination products, 5 shows an η3 coordination in which the butterfly As4 ligand is rearranged to a cyclo-As4 ligand. The reported complexes are rationalized in terms of inverse coordination.
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14
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Castro I, Calatayud ML, Orts-Arroyo M, Moliner N, Marino N, Lloret F, Ruiz-García R, Munno GD, Julve M. Ferro- and Antiferromagnetic Interactions in Oxalato-Centered Inverse Hexanuclear and Chain Copper(II) Complexes with Pyrazole Derivatives. Molecules 2021; 26:molecules26092792. [PMID: 34068482 PMCID: PMC8126003 DOI: 10.3390/molecules26092792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 11/16/2022] Open
Abstract
Two novel copper(II) complexes of formulas {[Cu(4-Hmpz)4][Cu(4-Hmpz)2(µ3-ox-κ2O1,O2:κO2':κO1')(ClO4)2]}n (1) and {[Cu(3,4,5-Htmpz)4]2[Cu(3,4,5-Htmpz)2(µ3-ox-κ2O1,O2:κO2':κO1')(H2O)(ClO4)]2[Cu2(3,4,5-Htmpz)4(µ-ox-κ2O1,O2:κ2O2',O1')]}(ClO4)4·6H2O (2) have been obtained by using 4-methyl-1H-pyrazole (4-Hmpz) and 3,4,5-trimethyl-1H-pyrazole (3,4,5-Htmpz) as terminal ligands and oxalate (ox) as the polyatomic inverse coordination center. The crystal structure of 1 consists of perchlorate counteranions and cationic copper(II) chains with alternating bis(pyrazole)(µ3-κ2O1,O2:κO2':κO1'-oxalato)copper(II) and tetrakis(pyrazole)copper(II) fragments. The crystal structure of 2 is made up of perchlorate counteranions and cationic centrosymmetric hexanuclear complexes where an inner tetrakis(pyrazole)(µ-κ2O1,O2:κ2O2',O1'-oxalato)dicopper(II) entity and two outer mononuclear tetrakis(pyrazole)copper(II) units are linked through two mononuclear aquabis(pyrazole)(µ3-κ2O1,O2:κO2':κO1'-oxalato)copper(II) units. The magnetic properties of 1 and 2 were investigated in the temperature range 2.0-300 K. Very weak intrachain antiferromagnetic interactions between the copper(II) ions through the µ3-ox-κ2O1,O2:κO2':κO1' center occur in 1 [J = -0.42(1) cm-1, the spin Hamiltonian being defined as H = -J∑S1,i · S2,i+1], whereas very weak intramolecular ferromagnetic [J = +0.28(2) cm-1] and strong antiferromagnetic [J' = -348(2) cm-1] couplings coexist in 2 which are mediated by the µ3-ox-κ2O1,O2:κO2':κO1' and µ-ox-κ2O1,O2:κ2O2',O1' centers, respectively. The variation in the nature and magnitude of the magnetic coupling for this pair of oxalato-centered inverse copper(II) complexes is discussed in the light of their different structural features, and a comparison with related oxalato-centered inverse copper(II)-pyrazole systems from the literature is carried out.
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Affiliation(s)
- Isabel Castro
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - M. Luisa Calatayud
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Marta Orts-Arroyo
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Nicolás Moliner
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Nadia Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, Italy
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Rafael Ruiz-García
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Giovanni De Munno
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, Italy
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
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Li HY, Lii KH. Hydrothermal synthesis, crystal structures, and X-ray photoelectron spectroscopy of lead tellurium(IV) and tellurium(VI) oxycompounds: Ba 3PbTe 6O 16 and Na 2Pb 9(μ 6-O) 2(Te 2O 10) 2. Dalton Trans 2021; 50:8189-8195. [PMID: 34031674 DOI: 10.1039/d1dt00566a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An exploratory study of the lead-tellurium-oxygen phase space led to two new compounds, Ba3PbTe6O16 (BPTO) and Na2Pb9(μ6-O)2(Te2O10)2 (NPTO), which were synthesized under hydrothermal conditions at 550 °C and 210 °C, respectively, and characterized by single-crystal X-ray diffraction, infrared and X-ray photoelectron spectroscopy. BPTO adopts a layer structure. The Te4+ cation in BPTO is bonded to four oxygen atoms at about 2.0 Å with two more oxygens at about 3.0 Å. The seesaw-shaped TeO4 units share corners to form 2D layers containing six-membered rings and the Ba2+ and Pb2+ cations are situated in the interlayer region. The structure of NPTO contains dimers of edge-sharing Te6+O6 octahedra, which are connected through five-coordinate Pb2+ cations. A unique six-coordinate O atom is at the center of the octahedron formed by five Pb2+ and one Na+ cations. BPTO is one of the few metal tellurites which were synthesized under supercritical hydrothermal reaction conditions. The Pb2+ cation in NPTO shows pronounced stereochemical effects of the lone electron pair. In contrast, BPTO shows no stereochemical evidence of the inert pair.
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Affiliation(s)
- Han-Ying Li
- Department of Chemistry, National Central University, Zhongli, Taoyuan, Taiwan 320, Republic of China..
| | - Kwang-Hwa Lii
- Department of Chemistry, National Central University, Zhongli, Taoyuan, Taiwan 320, Republic of China.. and Institute of Chemistry, Academia Sinica, Nnakang, Taipei, Taiwan 115, Republic of China
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Shieh M, Li YH, Lin CH, Sun TY. Low-Valent, Multiply Bonded, Trigonal-Planar Sb Complex: Rational Syntheses, Dual Acidic/Basic Properties, and Unexpected Semiconducting Characteristics. Inorg Chem 2020; 59:16073-16089. [PMID: 33079536 DOI: 10.1021/acs.inorgchem.0c02820] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A 4-center, 6π-conjugated, multiply bonded trigonal-planar complex, [Sb{Cr(CO)5}3]- (1), was synthesized via the hydride abstraction of [HSb{Cr(CO)5}3]2- (1-H) with HBF4·H2O, with the release of high yields of H2. The oxidation state of the Sb atom in [Et4N][1] was well-defined as 0, which was evidenced by X-ray photoelectron spectroscopy and X-ray absorption near-edge structure. The distinct color-structure relationship of this low-valent Sb complex 1 toward a wide range of organic solvents was demonstrated, as interpreted by time-dependent density functional theory calculations, allowing the trigonal-planar 1 and the tetrahedral solvent adducts to be probed, revealing the dual acid/base properties of the Sb center. In addition, 1 showed pronounced electrophilicity toward anionic and neutral nucleophiles, even with solvent molecules, to produce tetrahedral complexes [(Nu)Sb{Cr(CO)5}3]n- [1-Nu; n = 2, Nu = H, F, Cl, Br, I, OH; n = 1, Nu = PEt3, PPh3, N,N-dimethylformamide (DMF), acetonitrile (MeCN)]. On the contrary, the Fe/Cr hydride complex [HSb{Fe(CO)4}{Cr(CO)5}2]2- (2-H) was obtained by treating 1 with [HFe(CO)4]-. Upon hydride abstraction of 2-H with HBF4·H2O or [CPh3][BF4], a multiply bonded Fe/Cr trigonal-planar complex, [Sb{Fe(CO)4}{Cr(CO)5}2]- (2), was produced in which the oxidation coupling Sb2-containing complexes [Sb2Cr4Fe2(CO)28]2- (3-Cr) and [HSb2Cr3Fe2(CO)23]- (3-H) were yielded as final products. Complex 3-Cr exhibited dual Lewis acid/base properties via hydridation and protonation reactions, to form 2-H or 3-H, respectively. Surprisingly, [Et4N][1] possessed a low energy gap of 1.13 eV with an electrical conductivity in the range of (1.10-2.77) × 10-6 S·cm-1, showing that [Et4N][1] was a low-energy-gap semiconductor. The crystal packing, crystal indexing, and density of states results of [Et4N][1] further confirmed the efficient through-space conduction pathway via the intermolecular Sb···O(carbonyl) and O(carbonyl)···O(carbonyl) interactions of the 1D anionic zigzag chain of 1.
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Affiliation(s)
- Minghuey Shieh
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Yu-Huei Li
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Chia-Hsien Lin
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Tzu-Yen Sun
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
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17
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Bejan A, Doroftei F, Cheng X, Marin L. Phenothiazine-chitosan based eco-adsorbents: A special design for mercury removal and fast naked eye detection. Int J Biol Macromol 2020; 162:1839-1848. [PMID: 32745550 DOI: 10.1016/j.ijbiomac.2020.07.232] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022]
Abstract
The aim of the paper was to investigate the ability of an eco-friendly luminescent xerogel prepared by chitosan crosslinking with a phenothiazine luminogen to detect and remove heavy metals. Its ability to give a divergent morphological and optical response towards fifteen environmental relevant metals was investigated by naked eye and UV lamp, fluorescence spectroscopy and scanning electron microscopy. A distinct response was noted for mercury, consisting in the transformation of the xerogel into a rubber-like material accompanied by the red shifting of the color of emitted light from yellow-green to greenish-yellow domain. The particularities of the metals anchoring into the xerogel were analyzed by FTIR spectroscopy and X-ray diffraction. The morphological changes and the metal uptake were analyzed by SEM-EDAX, swelling and gravimetric methods. It was concluded that mercury has a superior affinity towards this heteroatoms rich system, leading to a secondary crosslinking. This directed a great absorption capacity of 1673 mg/g and a specific morphological response for mercury ion concentrations up to 0.001 ppm.
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Affiliation(s)
- Andrei Bejan
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania
| | - Florica Doroftei
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania.
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18
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Brocha Silalahi RP, Huang GR, Liao JH, Chiu TH, Chakrahari KK, Wang X, Cartron J, Kahlal S, Saillard JY, Liu CW. Copper Clusters Containing Hydrides in Trigonal Pyramidal Geometry. Inorg Chem 2020; 59:2536-2547. [DOI: 10.1021/acs.inorgchem.9b03501] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rhone P. Brocha Silalahi
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Guan-Rong Huang
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | | | - Xiaoping Wang
- Neutron Scattering Division, Neutron Sciences Directorate Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Julien Cartron
- Univ. Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Samia Kahlal
- Univ. Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
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Lawrence SR, Ohlin CA, Cordes DB, Slawin AMZ, Stasch A. Hydrocarbon-soluble, hexaanionic fulleride complexes of magnesium. Chem Sci 2019; 10:10755-10764. [PMID: 32055382 PMCID: PMC6993810 DOI: 10.1039/c9sc03857d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/06/2019] [Indexed: 11/21/2022] Open
Abstract
Fullerene C60 reacts with dimagnesium(i) compounds LMgMgL, where L is a monoanionic β-diketiminate ligand, to contact ion complexes [(LMg)nC60], where n is predominantly 2, 4 or 6.
The reaction of the magnesium(i) complexes [{(Arnacnac)Mg}2], (Arnacnac = HC(MeCNAr)2, Ar = Dip (2,6-iPr2C6H3), Dep (2,6-Et2C6H3), Mes (2,4,6-Me3C6H2), Xyl (2,6-Me2C6H3)) with fullerene C60 afforded a series of hydrocarbon-soluble fulleride complexes [{(Arnacnac)Mg}nC60], predominantly with n = 6, 4 and 2. 13C{1H} NMR spectroscopic studies show both similarities (n = 6) and differences (n = 4, 2) to previously characterised examples of fulleride complexes and materials with electropositive metal ions. The molecular structures of [{(Arnacnac)Mg}nC60] with n = 6, 4 and 2 can be described as inverse coordination complexes of n [(Arnacnac)Mg]+ ions with C60n– anions showing predominantly ionic metal–ligand interactions, and include the first well-defined and soluble complexes of the C606– ion. Experimental studies show the flexible ionic nature of the {(Arnacnac)Mg}+···C606– coordination bonds. DFT calculations on the model complex [{(Menacnac)Mg}6C60] (Menacnac = HC(MeCNMe)2) support the formulation as an ionic complex with a central C606– anion and comparable frontier orbitals to C606– with a small HOMO–LUMO gap. The reduction of C60 to its hexaanion gives an indication about the reducing strength of dimagnesium(i) complexes.
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Affiliation(s)
- Samuel R Lawrence
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - C André Ohlin
- Department of Chemistry , Umeå University , Linnaeus väg 10 , Umeå , 907 36 , Sweden
| | - David B Cordes
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Alexandra M Z Slawin
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Andreas Stasch
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
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20
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Engel A, Dehnen S. Amino Acid Functionalized Organotin Trichlorides and Their Tin Sulfide Clusters. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Annikka Engel
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
| | - Stefanie Dehnen
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
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Shieh M, Liu YH, Huang CY, Chen SW, Cheng WK, Chien LT. The First Naked Bismuth-Chalcogen Metal Carbonyl Clusters: Extraordinary Nucleophilicity of the Bi Atom and Semiconducting Characteristics. Inorg Chem 2019; 58:6706-6721. [PMID: 30933492 DOI: 10.1021/acs.inorgchem.9b00080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mixed bismuth-chalcogen-iron clusters [{EFe3(CO)9}Bi]- [E = Te (1a) or Se (1b)] were produced via the reduction of BiCl3 with [EFe3(CO)9]2- under mild conditions. X-ray analysis showed that both clusters 1a and 1b had a square-pyramidal geometry, where the naked Bi and chalcogen both adopted a distorted trigonal-pyramidal configuration with a stereoactive lone pair. Complexes 1a and 1b can be further functionalized by methylation and metalation, which permits the nucleophilicity of the 6s/5s and 6s/4s lone pairs to be compared. In the metalation, the 6s pair of the Bi atom in 1a and 1b had an extraordinary nucleophilicity toward the unsaturated Cr(CO)5 fragment, even in the presence of the more chemically active 5s or 4s pair, whereas in the case of methylation, only the 4s pair of Se could be selectively alkylated. Upon oxidation of 1a and 1b with suitable oxidizing agents, NaBiO3 or K2SeO3, Bi-E bonded tetrahedral complexes [{EFe2(CO)6}Bi]- [E = Te (4a) or Se (4b)] were formed by the elimination of one Fe(CO)3 vertex. X-ray photoelectron spectroscopy, X-ray absorption near-edge structure, and density functional theory (DFT) calculations showed that all of the Bi atoms in these complexes had oxidation states close to +1. Due to the electropositive character of the Bi atom, pronounced induced Bi···E inter- and intramolecular interactions were evident in 1a (1b), 4a (4b), and the metalated 3a (3b), where their linear-like ···Bi···E··· or zigzag-like ···Bi-E··· (E = Te or Se) chain or the Bi···E···E···Bi (E = Te or Se) dimeric chain can further expand into the two-dimensional network via nonclassical C-H···O(carbonyl) interactions, supported by noncovalent interaction index and DFT calculations. These positively charged Bi-induced Bi···E (E = Te or Se) and carbonyl-aided weak interactions can facilitate efficient electron transport within these ternary Bi-E-Fe or quaternary Bi-E-Fe-Cr cluster-based frameworks, resulting in semiconducting behavior with surprising ultranarrow energy gaps of 1.01-1.21 eV.
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Affiliation(s)
- Minghuey Shieh
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
| | - Yu-Hsin Liu
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
| | - Chung-Yi Huang
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
| | - Szu-Wei Chen
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
| | - Wen-Kai Cheng
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
| | - Li-Tzu Chien
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan , Republic of China
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22
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Haiduc I. Review: Inverse coordination. Inorganic open and cyclic nitrogen heteroatom molecules as coordination centers. A survey of molecular topologies. J COORD CHEM 2019. [DOI: 10.1080/00958972.2018.1556393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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23
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Joy SR, Trufan E, Smith MD, Puscas C, Silaghi-Dumitrescu RL, Semeniuc RF. An unexpected μ4-oxido-bridged tetranuclear Cu(II) inverse coordination complex of a heptadentate bis(pyrazolyl)methane-based ligand: Synthesis, structure, spectroscopic properties, and catecholase activity. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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25
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Chakrahari KK, Silalahi RPB, Liao JH, Kahlal S, Liu YC, Lee JF, Chiang MH, Saillard JY, Liu CW. Synthesis and structural characterization of inverse-coordination clusters from a two-electron superatomic copper nanocluster. Chem Sci 2018; 9:6785-6795. [PMID: 30310611 PMCID: PMC6115619 DOI: 10.1039/c8sc01508b] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/30/2018] [Indexed: 11/21/2022] Open
Abstract
We have synthesized and structurally characterized a series of centred cuboctahedral copper clusters, namely [Cu13{S2CNR2}6{C[triple bond, length as m-dash]CR'}4](PF6), 1a-d (where a: R = n Bu, R' = CO2Me; b: R = n Bu, R' = CO2Et; c: R = iPr, R' = CO2Et; d: R = n Pr, R' = 3,5-(CF3)2C6H3); [Cu12(μ12-S){S2CNR2}6{C[triple bond, length as m-dash]CR'}4], 2a-c; [Cu12(μ12-Cl){S2CNR2}6{C[triple bond, length as m-dash]CR'}4](PF6), 3a-e (where e: R = n Bu, R' = Ph); [Cu12(μ12-Br){S2CN n Bu2}6{C[triple bond, length as m-dash]CPh}4](PF6), 4e; and [Cu12(μ12-Cl)(μ3-Cl){S2CN n Bu2}6{C[triple bond, length as m-dash]CCO2Me}3]+ 5a. Cluster 1a is the first structurally characterized copper cluster having a Cu13 centered cuboctahedral arrangement, a miniature of the bulk copper fcc structure. Furthermore, the partial Cu(0) character in the 2-electron superatoms 1 was confirmed by XANES. Inverse coordination clusters 2-5 are the first examples of copper clusters containing main group elements (Cl, Br, S) with a hyper-coordination number, twelve. A combined theoretical and experimental study was performed, which shows that the central copper (formally Cu1-) in nanoclusters 1 can be replaced by chalcogen/halogen atoms, resulting in the formation of clusters 2-5 which show enhanced luminescence properties and increase in the ionic component of the host-guest interaction as Br ≈ Cl > S > Cu, which is consistent with the Cu-X Wiberg indices. The new compounds have been characterized by ESI-MS, 1H, 13C NMR, IR, UV-visible, emission spectroscopy, and the structures 2a-b, 3d-e, 4e and 5a were established by X-ray diffraction analysis.
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Affiliation(s)
- Kiran Kumarvarma Chakrahari
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Rhone P Brocha Silalahi
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Jian-Hong Liao
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Samia Kahlal
- Univ Rennes , CNRS , ISCR-UMR 6226 , F-35000 Rennes , France
| | - Yu-Chiao Liu
- Institute of Chemistry , Academia Sinica , Taipei 11528 , Taiwan , Republic of China
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
| | - Ming-Hsi Chiang
- Institute of Chemistry , Academia Sinica , Taipei 11528 , Taiwan , Republic of China
| | | | - C W Liu
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
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Kar S, Saha K, Saha S, Kirubakaran B, Dorcet V, Ghosh S. Trimetallic Cubane-Type Clusters: Transition-Metal Variation as a Probe of the Roots of Hypoelectronic Metallaheteroboranes. Inorg Chem 2018; 57:10896-10905. [PMID: 30124293 DOI: 10.1021/acs.inorgchem.8b01531] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In an effort to synthesize chalcogen-rich metallaheteroborane clusters of group 5 metals, thermolysis of [Cp*TaCl4] (Cp* = η5-C5Me5) with thioborate ligand Li[BH2S3] was carried out, affording trimetallic clusters [(Cp*Ta)3(μ-S)3(μ3-S)3B(R)], 1-3 (1, R = H; 2, R = SH; and 3, R = Cl). Clusters 1-3 are illustrative examples of cubane-type organotantalum sulfido clusters in which one of the vertices of the cubane is missing. In parallel to the formation of 1-3, the reaction also yielded tetrametallic sulfido cluster [(Cp*Ta)4(μ-S)6(μ3-S)(μ4-O)], 6, having an adamantane core structure. Compound 6 is one of the rarest examples containing the μ4-oxo unit with a heavier early transition metal, i.e., tantalum. In an effort to isolate selenium analogues of clusters 1-3, we have isolated the trimetallic cluster [(Cp*Ta)3(μ-Se)3(μ3-Se)3B(H)], 4, from the thermolytic reaction of [Cp*TaCl4] and Li[BH2Se3]. In contrast, the thermolysis of [Cp*TaCl4] with Li[BH2Te3] under the same reaction conditions yielded tantalum telluride complex [(Cp*Ta)2(μ-Te)2], 5. Compounds 1-4 are hypo-electronic clusters with an electron count of 50 cluster valence electrons. All these compounds have been characterized by 1H, 11B{1H}, and 13C{1H} NMR spectroscopy; infrared spectroscopy; mass spectrometry; and single-crystal X-ray crystallography. The density functional theory calculations were also carried out to provide insight into the bonding and electronic structures of these molecules.
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Affiliation(s)
- Sourav Kar
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
| | - Koushik Saha
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
| | - Suvam Saha
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
| | | | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes , UMR 6226 CNRS-Ecole Nationale Supérieure de Chimie de Rennes-Université de Rennes 1 , F-35042 Rennes Cedex, France
| | - Sundargopal Ghosh
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
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Shiga T, Newton GN, Oshio H. Pre-programmed self-assembly of polynuclear clusters. Dalton Trans 2018; 47:7384-7394. [PMID: 29667675 DOI: 10.1039/c8dt00822a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This perspective reviews our recent efforts towards the self-assembly of polynuclear clusters with ditopic and tritopic multidentate ligands HL1 (2-phenyl-4,5-bis{6-(3,5-dimethylpyrazol-1-yl)pyrid-2-yl}-1H-imidazole) and H2L2 (2,6-bis-[5-(2-pyridinyl)-1H-pyrazole-3-yl]pyridine), both of which are planar and rigid molecules. HL1 was found to be an excellent support for tetranuclear [Fe4] complexes, [FeII4(L1)4](BF4)4 ([FeII4]) and [FeIII2FeII2(L1)4](BF4)6 ([FeIII2FeII2]). The homovalent system was found to exhibit multistep spin crossover (SCO), while the mixed-valence [FeIII2FeII2] complex shows wavelength-dependent tuneable light-induced excited spin state trapping (LIESST). For H2L2, a variety of polynuclear complexes were obtained through complexation with different transition metal ions, allowing the isolation of rings, grids, and helix structures. The rigidity of the ligand, difference in its coordination sites, and affinity for different metal ions dictates its coordination behaviour. In this paper, we summarise these ligand pre-programmed self-assembled clusters and their diverse physical properties.
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Affiliation(s)
- Takuya Shiga
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8571, Japan.
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Uzelac M, Mulvey RE. Trans-Metal-Trapping: Concealed Crossover Complexes En Route to Transmetallation? Chemistry 2018; 24:7786-7793. [PMID: 29603459 DOI: 10.1002/chem.201800489] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/28/2018] [Indexed: 12/14/2022]
Abstract
Defined as the transfer of ligands from one metal to another, transmetallation is a common reaction in organometallic chemistry. Its chemical celebrity stems from its role in important catalytic cycles of cross-coupling reactions such as those of Negishi, Sonogashira, Stille, or Suzuki. This article focuses on trans-metal-trapping (TMT), which could be construed as partially complete transmetallations. On mixing two distinct organometallic compounds, of for example lithium with aluminium or gallium, the two metals meet in a crossover co-complex, but the reaction ceases at that point and full transmetallation is not reached. Though in its infancy, trans-metal-trapping shows promise in transforming failed lithiations into successful lithiations and in stabilising sensitive carbanions through cooperative bimetallic effects making them more amenable to onward reactivity.
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Affiliation(s)
- Marina Uzelac
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Robert E Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
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29
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Silvestru C, Andruh M. Ionel Haiduc – A Life Dedicated to Science. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Cadar O, Pöllnitz A, Mărgineanu D, Silvestru C. Solid-state structure and solution behaviour of organomercury(II) compounds containing 2-(Me2NCH2)C6H4- moieties. Supramolecular aspects. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Niu HC, Plajer AJ, Garcia-Rodriguez R, Singh S, Wright DS. Designing the Macrocyclic Dimension in Main Group Chemistry. Chemistry 2018; 24:3073-3082. [DOI: 10.1002/chem.201705230] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Hao-Che Niu
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
| | - Alex J. Plajer
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
| | - Raul Garcia-Rodriguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel, Delibes; Universidad de Valladolid; 47011 Valladolid Spain
| | - Sanjay Singh
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81, SAS Nagar; Mohali 140306, Punjab India
| | - Dominic S. Wright
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
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Latouche C, Liao JH, Li YJ, Shiu RY, Barone V, Kahlal S, Liu CW, Saillard JY. Encapsulating Iodine and Copper into Copper(I) Clusters Stabilized by Dichalcogenolate Ligands: Stability, Structure, and Optical Properties. Inorg Chem 2017; 56:14135-14146. [DOI: 10.1021/acs.inorgchem.7b02269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Camille Latouche
- Institut des Matériaux
Jean Rouxel, Université de Nantes, CNRS, 2 rue de la Houssinière,
BP 32229, 44322 Nantes cedex 3, France
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Yi-Juan Li
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Ruei-Yi Shiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus
de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus
de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
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33
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Inverse coordination – An emerging new chemical concept. II. Halogens as coordination centers. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fischer R, Görls H, Krieck S, Westerhausen M. Dilithium and Magnesium Alkanediides and 1-Oxaalkanediides. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Reinald Fischer
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Sven Krieck
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Matthias Westerhausen
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
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The Interplay between Various σ- and π-Hole Interactions of Trigonal Boron and Trigonal Pyramidal Arsenic Triiodides. CRYSTALS 2017. [DOI: 10.3390/cryst7070225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Leszczyński MK, Justyniak I, Zelga K, Lewiński J. From ethylzinc guanidinate to [Zn10O4]-supertetrahedron. Dalton Trans 2017; 46:12404-12407. [DOI: 10.1039/c7dt01619k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The controlled hydrolysis of an ethylzinc guanidinate complex affords an unprecedented cluster containing a [Zn10O4]12+ supertetrahedron core stabilized by the guanidinate ligands.
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Affiliation(s)
| | - Iwona Justyniak
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Karolina Zelga
- Department of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Janusz Lewiński
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
- Department of Chemistry
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