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Zhu Z, Lan J, Chen SM, Wang F. Design and synthesis of hydrogen-bonded organic frameworks based on Ni4L4 cubane units. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Deville C, Jeppesen HS, McKee V, Lock N. Anion and solvent controlled growth of crystalline and amorphous zinc(ii) coordination polymers and a molecular complex. Dalton Trans 2021; 50:3979-3989. [PMID: 33646221 DOI: 10.1039/d0dt04190d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled bottom-up synthesis of amorphous coordination polymers with tailored metal coordination is a research field in its infancy. In this study, synthesis control was achieved to selectively prepare one-dimensional (1D) crystalline and amorphous zinc(ii)-based coordination polymers and a dimeric molecular compound, all with similar coordination geometry as evidenced by X-ray diffraction and total scattering studies. The compounds were obtained by bottom up self-assembly of Zn(ii) with terephthalate (tph2-) as linker and the enantiopure chelating ligand S-(1,2)-bis(1H-benzimidazol-2-yl)ethanol (L). The solvent and the coordination ability of the precursor zinc salt anion control the crystalline products formed by slow diffusion at room temperature: perchlorate allows isolation of the phase pure crystalline 1D polymer {[Zn(tph)(L)]·H2O·3DMF}n (1·H2O·3DMF, DMF = N,N-dimethylformamide). In contrast, zinc chloride leads to the formation of either a mixture of polymeric 1·H2O·3DMF and a dimeric molecular species [Zn2Cl2(tph)(L)2]·4DMF (2·4DMF), or to the phase pure dimer 2·4DMF, depending on the Zn(ii) : tphH2 stoichiometry. A modified synthesis using zinc nitrate and fast precipitation by base addition results in an amorphous analogue of the 1D polymer (3). Chains of 1·H2O·3DMF pack into a non-porous crystalline material with a surface area of just 6 m2 g-1, while the outer surface area of amorphous polymer 3 is a factor of eight larger. Hence, the amorphous compound provides larger metal site accessibility for potential surface chemical reactions, while maintaining the coordination geometry of the metal sites. The temperature response of crystalline polymer 1·H2O·3DMF was studied using multi-temperature single crystal X-ray diffraction (100-300 K). The a = b axes display normal positive thermal expansion, while the c axis remains constant with increasing temperature due to partial relaxation of the terephthalate linkers and slightly changed geometry within the individual polymer chains.
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Affiliation(s)
- Claire Deville
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
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3
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Deville C, Folkjær M, Reinholdt P, Hvid MS, Lamagni P, Borup K, Sun Z, Lauritsen JV, McKee V, Jensen KMØ, Lock N. Cubes on a string: a series of linear coordination polymers with cubane-like nodes and dicarboxylate linkers. NANOSCALE 2020; 12:11601-11611. [PMID: 32432631 DOI: 10.1039/d0nr01503b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A series of semicrystalline and amorphous one-dimensional (1D) polymeric chains consisting of cubane-like CoII4L4 units (L = S-1,2-bis(benzimidazol-2-yl)ethanol) and dicarboxylates were synthesized and characterized by single crystal diffraction and X-ray total scattering. The polycationic chains are composed of [Co4L4(dicarboxylate)]2+ monomeric units, while one molecular dicarboxylate counterion is balancing the charge of each monomer. The linear compound series has five members, and the crystal structures were solved for [Co4L4(tph)](tph) and [Co4L4(ndc)](ndc), where tph = terephthalate and ndc = 2,6-naphthalenedicarboxylate. Partly crystalline compounds were produced by slow assembly at elevated temperature (over days), while the amorphous compounds were formed by fast precipitation (within minutes). Pair distribution function (PDF) analysis based on X-ray total scattering data reveals the presence of the cubane-like entity in both the amorphous and semicrystalline samples. While the powders are non-porous, precipitation is a fast and versatile method to produce compounds with cubane-like centres with moderate surface areas of 17-49 m2 g-1 allowing for surface chemical reactions. The powders have a high concentration of Lewis base sites as verified by their selective adsorption of CO2 over N2. The use of an amorphous cubane-like polymer for the electrocatalytic oxygen evolution reaction was demonstrated.
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Affiliation(s)
- Claire Deville
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Mads Folkjær
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Peter Reinholdt
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
| | - Mathias S Hvid
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Paolo Lamagni
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Kasper Borup
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Zhaozong Sun
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Jeppe Vang Lauritsen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Vickie McKee
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
| | - Kirsten M Ø Jensen
- Department of Chemistry and Nanoscience Center, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Nina Lock
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Dept. of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
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4
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Han G, Zhou Y, Yao Y, Cheng Z, Gao T, Li H, Yan P. Preorganized helical chirality controlled homochiral self-assembly and circularly polarized luminescence of a quadruple-stranded Eu 2L 4 helicate. Dalton Trans 2020; 49:3312-3320. [PMID: 32101214 DOI: 10.1039/d0dt00062k] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
β-Diketones are one of the most widely used ligands for sensitizing the luminescence of lanthanide complexes due to their excellent sensitization abilities. However, the difficulties in introducing chiral groups to take part in the electronic transitions of conjugated systems limit their application in lanthanide circularly polarized luminescence (CPL) materials. In view of the inherent chirality of the helical structure, herein, a pair of homochiral quadruple-stranded helicates, Eu2L4, is assembled based on chiral bis-β-diketonate ligands, wherein the two point chirality centers in the spacer preorganize the helical conformation of the ligand (3S,4S)/(3R,4R)-3,4-bis(4,4'-bis(4,4,4-trifluoro-1,3-dioxobutyl)phenoxyl)-1-benzylpyrrolidine, LSS/LRR. X-ray crystallographic analyses reveal that the R,R configurations of the chiral carbons in the spacer induce the M helical sense of the ligand, while the S,S configurations induce the P helical sense. Through the comprehensive spectral characterization in combination with semiempirical geometry optimization using the Sparkle/RM1 model, it is confirmed that the preorganized ligands successfully control the homochirality of the helicates. Moreover, the mirror-image CD and CPL spectra and NMR measurements confirm the formation of enantiomeric pairs and their diastereopurities in solution. Detailed photophysical and chiroptical characterization studies reveal that the helicates not only exhibit intense circularly polarized luminescence (CPL) with |glum| values reaching 0.10, but also show a high luminescence quantum yield of 34%. This study effectively combines the helical chirality of the helicates with the excellent sensitization ability of the β-diketones, providing an effective strategy for the syntheses of chiral lanthanide CPL materials.
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Affiliation(s)
- Guoying Han
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, P. R. China.
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5
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Lang WJ, Kurmoo M, Zeng MH. A Chiral and Polar Single-Molecule Magnet: Synthesis, Structure, and Tracking of Its Formation Using Mass Spectrometry. Inorg Chem 2019; 58:7236-7242. [PMID: 31091083 DOI: 10.1021/acs.inorgchem.9b00269] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The solvothermal reaction of cobalt(II) sulfate with S, S-1,2- bis(1-methyl-1 H-benzo[ d]imidazol-2-yl)ethane-1,2-diol, (H2L), neutralized with triethylamine (Et3N) in a mixture of methanol and water (2:1), resulted in triangular red crystals of [CoII7(L)3(SO4)3(OH)2(H2O)9]·4H2O·3CH3OH (Co7). It is formed of chiral and polar clusters crystallizing in the R3 space group. Co7 consists of apex-shared asymmetric dicubane units where all of the metals adopt an octahedral coordination and the three ligands wrap diagonally around the unit. One end of the cluster is bonded by six water molecules and the other end by three monodentate sulfates. The head-to-tail packing through extended H-bonds leads to polar chains. The ligand has lost two protons, adopts a cis-conformation, and is coordinated to five metals around the waist of the dicubane. Electrospray ionization mass spectrometry (ESI-MS) of solutions of the reaction as a function of time reveals the possible step-by-step assembly process of the cluster: the initial product [CoII(HL)(SO4)]2- combines with CoSO4, forming [CoII2(HL)(SO4)2]2-, and then, upon addition of Et3N, dimerizes through a [OH]- bridge to [CoII4(HL)2(OH)(CH3OH)2(SO4)3]- followed by capture of one Co2+ and one CoSO4 to form [CoII6(L)2(OH)(CH3O)(SO4)4]2- before eventually binding to CoL to form [CoII7(L)3(OH)2(SO4)4]2-. These results allow us to propose a possible process for the formation of Co7, which is a good example for chiral multidentate chelating ligand-controlled assembly of clusters. Magnetization measurements as a function of the temperature, field, and ac-frequency reveal ferromagnetic coupled moments and single-molecule magnetism (SMM).
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Affiliation(s)
- Wen-Jing Lang
- Department of Chemistry and Pharmaceutical Sciences, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , 541004 , P. R. China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg, CNRS-UMR7177 , Université de Strasbourg , 4 rue Blaise Pascal , 67070 Strasbourg Cedex , France
| | - Ming-Hua Zeng
- Department of Chemistry and Pharmaceutical Sciences, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin , 541004 , P. R. China.,Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering , Hubei University , Wuhan , 430062 , P. R. China
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6
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Granelli M, Downward AM, Deville C, Franco AR, Guénée L, Besnard C, Williams AF. Coordination Chemistry of the Chiral, Facially Coordinating Tridentate Ligand 1,2‐Bis(benzimidazol‐2‐yl)ethanol with 3d Transition Metals. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Matteo Granelli
- Department of Inorganic and Analytical Chemistry University of Geneva 30 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Alan M. Downward
- Department of Inorganic and Analytical Chemistry University of Geneva 30 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Claire Deville
- Department of Inorganic and Analytical Chemistry University of Geneva 30 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Alejandro Rodriguez Franco
- Department of Inorganic and Analytical Chemistry University of Geneva 30 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Laure Guénée
- Laboratory for X‐ray Crystallography University of Geneva 24 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratory for X‐ray Crystallography University of Geneva 24 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
| | - Alan F. Williams
- Department of Inorganic and Analytical Chemistry University of Geneva 30 quai Ernest Ansermet CH 1211 Geneva 4 Switzerland
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7
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Du W, Bai YL, Yin X, Fang J, Zhu S, Tao J. A Homochiral {CoΙΙ16CoΙΙΙ4} SupertetrahedralT4Cluster from a Racemic Ligand with Ferromagnetic Behavior and High Photocatalytic Activity. Chemistry 2017; 23:8025-8031. [DOI: 10.1002/chem.201700797] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/17/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Du
- Department of Chemistry, Innovative Drug Center, College of Science; Shanghai University; Shanghai 200444 China
| | - Yue-Ling Bai
- Department of Chemistry, Innovative Drug Center, College of Science; Shanghai University; Shanghai 200444 China
| | - Xiuping Yin
- Department of Chemistry, Innovative Drug Center, College of Science; Shanghai University; Shanghai 200444 China
| | - Jianhui Fang
- Department of Chemistry, Innovative Drug Center, College of Science; Shanghai University; Shanghai 200444 China
| | - Shourong Zhu
- Department of Chemistry, Innovative Drug Center, College of Science; Shanghai University; Shanghai 200444 China
| | - Jun Tao
- School of Chemistry; Beijing Institute of Technology; Beijing 100081 China
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Granelli M, Downward AM, Huber R, Guénée L, Besnard C, Krämer KW, Decurtins S, Liu SX, Thompson LK, Williams AF. Dinuclear Complexes Formed by Hydrogen Bonds: Synthesis, Structure and Magnetic and Electrochemical Properties. Chemistry 2017; 23:7104-7112. [PMID: 28317198 DOI: 10.1002/chem.201700591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 11/06/2022]
Abstract
The synthesis is reported of a series of homo- and hetero-dinuclear octahedral complexes of the ligand 1, 1,2-bis(1-methyl-benzimidazol-2-yl) ethanol, where the two metal centres are linked by hydrogen bonds between coordinated alcohols and coordinated alkoxides. Homonuclear divalent MII MII , mixed-valent MII MIII and heteronuclear MII M'III species are prepared. The complexes have been characterised by X-ray crystallography and show unusually short O⋅⋅⋅O distances for the hydrogen bonds. Magnetic measurements show the hydrogen-bond bridges can lead to ferromagnetic or antiferromagnetic coupling. The electrochemistry of the dinuclear species is significantly different from the mononuclear systems: the latter show irreversible waves in cyclic voltammograms as a result of the need to couple proton and electron transfer. The dinuclear species, in contrast, show reversible waves, which are attributed to rapid intramolecular proton transfer facilitated by the hydrogen-bonded structure.
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Affiliation(s)
- Matteo Granelli
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
| | - Alan M Downward
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
| | - Robin Huber
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
| | - Laure Guénée
- Laboratory for X-ray Crystallography, University of Geneva, 24 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
| | - Céline Besnard
- Laboratory for X-ray Crystallography, University of Geneva, 24 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
| | - Karl W Krämer
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Silvio Decurtins
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Shi-Xia Liu
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Laurence K Thompson
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X7, Canada
| | - Alan F Williams
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva 4, Switzerland
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9
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Yashima E, Ousaka N, Taura D, Shimomura K, Ikai T, Maeda K. Supramolecular Helical Systems: Helical Assemblies of Small Molecules, Foldamers, and Polymers with Chiral Amplification and Their Functions. Chem Rev 2016; 116:13752-13990. [PMID: 27754649 DOI: 10.1021/acs.chemrev.6b00354] [Citation(s) in RCA: 1198] [Impact Index Per Article: 149.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this review, we describe the recent advances in supramolecular helical assemblies formed from chiral and achiral small molecules, oligomers (foldamers), and helical and nonhelical polymers from the viewpoints of their formations with unique chiral phenomena, such as amplification of chirality during the dynamic helically assembled processes, properties, and specific functionalities, some of which have not been observed in or achieved by biological systems. In addition, a brief historical overview of the helical assemblies of small molecules and remarkable progress in the synthesis of single-stranded and multistranded helical foldamers and polymers, their properties, structures, and functions, mainly since 2009, will also be described.
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Affiliation(s)
- Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Naoki Ousaka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Daisuke Taura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Kouhei Shimomura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
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Deville C, Granelli M, Downward AM, Besnard C, Guenée L, Williams AF. Helicity inversion and redox chemistry of chiral manganese(II) cubanes. Dalton Trans 2014; 43:12917-25. [PMID: 25019262 DOI: 10.1039/c4dt01590h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chiral ligand S-1,2-bis(1H-benzimidazol-2-yl)ethanol, 1, reacts with manganese(II) salts to form cubanes which readily undergo oxidation reactions leading either to a tetranuclear manganese(II,III) mixed valence complex 4 or to a tetranuclear complex of ligand 5 where the secondary alcohol has been oxidised to an enolate. N-methylation of ligand 1 slows the oxidation reaction and stable manganese(II) cubanes may be isolated. The fully methylated ligand 2 gives a cubane of opposite helicity to that found previously for 1 with cobalt. The inversion may be explained by conformational analysis. Cyclic voltammetry suggests that the manganese cubanes reported here are insufficiently robust to store oxidising equivalents as in the oxygen evolving system of photosystem II.
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Affiliation(s)
- Claire Deville
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH 1211 Geneva 4, Switzerland.
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Hu YQ, Zeng MH, Zhang K, Hu S, Zhou FF, Kurmoo M. Tracking the Formation of a Polynuclear Co16 Complex and Its Elimination and Substitution Reactions by Mass Spectroscopy and Crystallography. J Am Chem Soc 2013; 135:7901-8. [DOI: 10.1021/ja3123784] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yue-Qiao Hu
- Department of Chemistry and
Chemical Engineering, Guangxi Normal University, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal
Resources (Ministry of Education), Guilin 541004, P. R. China
| | - Ming-Hua Zeng
- Department of Chemistry and
Chemical Engineering, Guangxi Normal University, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal
Resources (Ministry of Education), Guilin 541004, P. R. China
| | - Kun Zhang
- Department of Chemistry and
Chemical Engineering, Guangxi Normal University, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal
Resources (Ministry of Education), Guilin 541004, P. R. China
| | - Sheng Hu
- School of Chemical Engineering
and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Fu-Fang Zhou
- Department of Chemistry and
Chemical Engineering, Guangxi Normal University, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal
Resources (Ministry of Education), Guilin 541004, P. R. China
| | - Mohamedally Kurmoo
- Laboratoire DECOMET, Institut
de Chimie de Strasbourg, Université de Strasbourg, CNRS-UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg
Cedex, France
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