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Yoshinari N, Kuwamura N, Kojima T, Konno T. Development of coordination chemistry with thiol-containing amino acids. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214857] [Citation(s) in RCA: 1] [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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2
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Abe R, Tsuchido Y, Ide T, Koizumi TA, Osakada K. Digold(I) Thianthrenyl Complexes. Effect of Diphosphine Ligands on Molecular Structures in the Solid State and in Solution. ACS OMEGA 2022; 7:9594-9601. [PMID: 35350371 PMCID: PMC8945089 DOI: 10.1021/acsomega.1c06938] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/14/2022] [Indexed: 05/28/2023]
Abstract
A series of digold complexes possessing two thianthrenyl ligands, Au2(Thi)2(Ph2P(CH2) n PPh2) (Thi: 1-thianthrenyl; 1: n = 1, 2: n = 2, 3: n = 3, 4: n = 4), were prepared and characterized by crystallographic and spectroscopic measurements. X-ray crystallography of complexes 1 and 3 revealed U-shaped structures with short Au-Au distances [3.2171(3) Å and 3.0735(2) Å]. Complex 2 and three of the four structure-determined molecules of complex 4 showed structures without Au-Au contacts. UV-vis spectroscopic measurements of 1-4 and TD-DFT calculations of the two conformers of 1 revealed that complexes 1 and 3 in the solution phase contained conformers with Au(I)-Au(I) interactions in a much higher proportion than complexes 2 and 4. As a result, complexes with diphosphine ligands containing an odd number of methylene groups preferred structures with Au-Au interactions in the solid state and in solution. Oxidation of 1 with 2 equiv of PhICl2 yielded a mixture of monomeric and dimeric thianthrenes and its dimer via ligand elimination and C-C coupling, respectively.
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Affiliation(s)
- Ryota Abe
- Laboratory
for Chemistry and Life Science, Institute
of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yoshitaka Tsuchido
- Laboratory
for Chemistry and Life Science, Institute
of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Tomohito Ide
- Department
of Chemical Science and Engineering, National
Institute of Technology, Tokyo College, 1220-2 Kunugida-machi, Hachioji-shi, Tokyo 193-0997, Japan
| | - Take-aki Koizumi
- Advanced
Institute of Analysis Center, Shizuoka Institute
of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Kohtaro Osakada
- Laboratory
for Chemistry and Life Science, Institute
of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
- National
Institute of Advance Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Japan
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3
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Ang PL, Nguyen VH, Yip JHK. Hetero- and homoleptic binuclear gold(I)-thiolate and -halide complexes - ligand exchange kinetics and supramolecular structures. Dalton Trans 2022; 51:3081-3095. [PMID: 35113094 DOI: 10.1039/d1dt04245a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heteroleptic and homoleptic binuclear Au(I) complexes [Au2(μ-PAnP)(SPh)(X)] (X = Cl- or Br-), [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(SPhCO2H)2] (SPh = benzenethiolate and SPhCO2H = 4-thiolatobenzoic acid) containing the bridging diphosphine, 9,10-bis(diphenylphosphino)anthracene (PAnP), were synthesized and characterized by single crystal X-ray diffraction. [Au2(μ-PAnP)(SPh)2] exists as a monomer in its crystals but [Au2(μ-PAnP)(SPhCO2H)2] polymerizes into zig-zag chains via intermolecular hydrogen bonding. [Au2(μ-PAnP)(SPh)(Cl)] forms cyclophane-like dimers of Ci symmetry in crystals via intermolecular aurophilic interactions (Au-Au distance = 3.3081(5) Å). Recrystallization of [Au2(μ-PAnP)(SPh)(Br)] invariably led to crystals composed of [Au2(μ-PAnP)(SPh)(Br)] and [Au2(μ-PAnP)(Br)2]. Despite the chemically different P atoms in the heteroleptic [Au2(μ-PAnP)(SPh)(Cl)] and [Au2(μ-PAnP)(SPh)(Br)], solutions of the complexes show only a single signal in their 31P{1H} NMR spectra at room temperature which resolved into two singlets of equal intensity at 183 K. Identical signals which show the same thermal behavior were observed in solutions of [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(X)2] in 1 : 1 molar ratios, indicating that there are three exchanging species, [Au2(μ-PAnP)(SPh)(X)], [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(X)2], in solution. A solution of [Au2(μ-PAnP)(Cl)2] and [Au2(μ-PAnP)(Br)2] in 1 : 1 molar ratio shows two singlets, implying that the exchange is not due to the dissociation of either PAnP or halide ligands, but rather it involves the exchange of the thiolate and the halide ligands (SPh- ↔ X-). A mixture of [(PPh3)Au(SPh)] and [(PPh3)Au(Cl)] (1 : 1 molar ratio) showed only one signal in its room temperature 31P{1H} NMR spectrum, indicating that the ligand exchange can happen intermolecularly. Self-exchange of SPh- ligands is possible as the room temperature 31P NMR spectrum of a mixture of [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(SPhCO2H)2] displayed only one signal. The rate constants of the exchange were determined by fitting the line shapes of the 31P NMR signals at different temperatures. The activation energies (Eas), obtained from Arrhenius plots, for the SPh- ↔ Cl- and SPh- ↔ Br- exchange are 36.9 ± 0.7 and 33.7 ± 1.0 kJ mol-1, respectively. The activation enthalpy and activation entropy, obtained from Eyring plots, for the SPh- ↔ Cl- and SPh- ↔ Br- exchange are 35.0 ± 0.7 kJ mol-1 and -25.7 ± 3.2 J K-1, and 32.0 ± 1.0 kJ mol-1 and -21.8 ± 4.7 J K-1, respectively. Based on the kinetic results, two possible mechanisms were proposed for the reactions.
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Affiliation(s)
- Pau Lin Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Van Ha Nguyen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - John H K Yip
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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Itai T, Kuwamura N, Kojima T, Yoshinari N, Rujiwatra A, Konno T. Photoluminescent Ionic Solids of S-Bridged Gold(I)-Gallium(III) and Gold(I)-Indium(III) Hexanuclear Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takuma Itai
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Naoto Kuwamura
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tatsuhiro Kojima
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Apinpus Rujiwatra
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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5
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Ang PL, Nguyen VH, Yip JHK. A dynamic tetranuclear gold(i)-cyclophane - gold(i)-centred chirality and fluxionality arising from an intramolecular shift of Au-S bonds. Dalton Trans 2021; 50:11422-11428. [PMID: 34346461 DOI: 10.1039/d1dt01984h] [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
A tetranuclear gold(i) complex [Au4(μ-PAnP)2(μ-L)2] (PAnP = 9,10-bis(diphenylphosphino)anthracene and L = benzene-1,2-dithiolate) has been synthesized and characterised by multinuclear NMR and X-ray crystallography. The molecule has a cyclophane-like structure which can be considered to be composed of two [Au2(μ-PAnP)(μ-L)] units held together by Au-S bonds and aurophilic interactions (Au-Au = 3.0712(2) Å). L acts as a chelating and bridging ligand with one of its S atoms bonded to two Au ions as sulfonium ions and there are two Au2S2 cores on each side of the cyclophane. A sulfur atom in each Au2S2 core is a chiral sulfonium ion, being bonded to two chemically distinct Au ions. Two Au ions are bonded to four atoms (2S, P and Au) in an asymmetric environment, making them a rare example of gold(i)-centred chirality. The two Au2S2 cores have RAu, RS and SAu, SS configurations, and the chiralities of the sulfonium ion and the gold ion are correlated. Variable-temperature NMR spectroscopy showed that the metallacyclophane undergoes rapid exchange in solution. A bond shift mechanism involving simultaneous cleavage and formation of Au-S bonds is proposed for the exchange.
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Affiliation(s)
- Pau Lin Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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Yoshinari N, Konno T. Lithium-, Sodium-, and Potassium-ion Conduction in Polymeric and Discrete Coordination Systems. CHEM LETT 2021. [DOI: 10.1246/cl.200857] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0044, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0044, Japan
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Pratikha RS, Inoue T, Arai Y, Kojima T, Yoshinari N, Konno T. A
charge‐separation‐type
ionic solid composed of hexanuclear complexes with a macrocyclic tetragold(I) metalloligand. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rycce S. Pratikha
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
| | - Takahiro Inoue
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
| | - Yuka Arai
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
| | - Tatsuhiro Kojima
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science Osaka University Osaka Japan
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Hanprasit S, Yoshinari N, Saito D, Kato M, Konno T. Homoleptic versus heteroleptic trinuclear systems with mixed l-cysteinate and d-penicillaminate regulated by a diphosphine linker. Dalton Trans 2020; 49:3503-3509. [DOI: 10.1039/d0dt00440e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The generation of homoleptic versus heteroleptic coordination compounds was controlled by slight modification of the diphosphine linker in a digold(i) metalloligand.
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Affiliation(s)
- Sasikarn Hanprasit
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Nobuto Yoshinari
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Daisuke Saito
- Department of Chemistry
- Faculty of Science
- Hokkaido University
- Sapporo
- Japan
| | - Masako Kato
- Department of Chemistry
- Faculty of Science
- Hokkaido University
- Sapporo
- Japan
| | - Takumi Konno
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
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Nishiura M, Kojima T, Igashira-Kamiyama A, Konno T. Ring-to-Cage Structural Conversion via Template Effect in a Gold(I) Metallosupramolecular System. Chem Asian J 2018; 13:1906-1910. [PMID: 29806909 DOI: 10.1002/asia.201800835] [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: 05/25/2018] [Indexed: 11/07/2022]
Abstract
A unique example of a ring-to-cage structural conversion in a multinuclear gold(I) coordination system with d-penicillamine (d-H2 pen) is reported. The reaction of [Au2 Cl2 (dppe)] (dppe=1,2-bis(diphenylphosphino)ethane) with d-H2 pen in a 1:1 ratio gave [Au4 (dppe)2 (d-pen)2 ] ([1]), in which two [Au2 (dppe)]2+ units are linked by two d-pen S atoms in a cyclic form so as to have two bidentate-N,O coordination arms. The subsequent reaction of [1] with Cu(OTf)2 afforded [Au4 Cu(dppe)2 (d-pen)2 ]2+ ([2]2+ ), in which a CuII ion is chelated by the two coordination arms in [1] to form an AuI4 CuII bicyclic metallocage. A similar reaction using Cu(NO3 )2 was accompanied by the ring expansion of [1] to [Au8 (dppe)4 (d-pen)4 ], leading to the production of [Au8 Cu2 (dppe)4 (d-pen)4 ]4+ ([3]4+ ). In [3]4+ , two CuII ions are each chelated by the two coordination arms to form an AuI8 CuII2 tricyclic metallocage, accommodating a nitrate ion. The use of Ni(NO3 )2 or Ni(OAc)2 instead of Cu(NO3 )2 commonly gave a tricyclic metallocage of [Au8 Ni2 (dppe)4 (d-pen)4 ]4+ ([4]4+ ), but a water molecule was accommodated inside the AuI8 NiII2 metallocage.
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Affiliation(s)
- Misa Nishiura
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Tatsuhiro Kojima
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | | | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
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Yoshinari N, Konno T. Chiral Phenomena in Multinuclear and Metallosupramolecular Coordination Systems Derived from Metalloligands with Thiol-Containing Amino Acids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Kuwamura N, Kurioka Y, Yoshinari N, Konno T. Heterogeneous catalytic water oxidation controlled by coordination geometries of copper(ii) centers with thiolato donors. Chem Commun (Camb) 2018; 54:10766-10769. [DOI: 10.1039/c8cc06238b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterometallic coordination compounds containing a thiolato dicopper(ii) core increase heterogeneous electrocatalytic activities for water oxidation in proportion to the numbers of vacant dicopper(ii) coordination sites.
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Affiliation(s)
- Naoto Kuwamura
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Yoshinari Kurioka
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Nobuto Yoshinari
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Takumi Konno
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
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Yoshinari N, Konno T. Metallosupramolecular Structures Derived from a Series of Diphosphine-bridged Digold(I) Metalloligands with Terminald-Penicillamine. CHEM REC 2016; 16:1647-63. [DOI: 10.1002/tcr.201600026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Nobuto Yoshinari
- Department of Chemistry; Graduate School of Science Osaka University; Toyonaka Osaka 560-0043 Japan
| | - Takumi Konno
- Department of Chemistry; Graduate School of Science Osaka University; Toyonaka Osaka 560-0043 Japan
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