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Dornsiepen E, Pieck F, Tonner R, Dehnen S. [{(PhSn) 3SnS 6}{(MCp) 3S 4}] (M = W, Mo): Minimal Molecular Models of the Covalent Attachment of Metal Chalcogenide Clusters on Doped Transition Metal Dichalcogenide Layers. J Am Chem Soc 2019; 141:16494-16500. [PMID: 31549829 DOI: 10.1021/jacs.9b09209] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
With the aim to mimic the yet unknown covalent deposition of metal chalcogenide clusters on transition metal dichalcogenide (TMDC) MoS2 or WS2 layers, and thereby explore the interaction between the two systems and potential consequences on physical properties of the TMDC material, we synthesized heterobimetallic model systems. The heterocubane-type cluster [(SnCl3)(WCp)3S4] (1), the organotin-sulfidomolybdate cluster [{(PhSn)3SnS6}{(MoCp)3S4}] (2), and the corresponding tungstate [(PhSn)3SnS6{(WCp)3S4}] (3) were obtained in ligand exchange reactions from [(PhSn)4S6] and [M(CO)3CpCl]. Indeed, the {M3S4} cages in 1-3 resemble a section of the respective TMDC monolayers, altogether representing minimal molecular model systems for the adsorption of organotin sulfide clusters on MoS2 or WS2. The interaction between the {(MCp)3S4} and {(PhSn)3SnS6} subunits is characterized by multicenter bonding, rendering the respective Sn atom as Sn(II), hence driving the clusters into a mixed-valence Sn(IV)/Sn(II) situation, and the M atoms as M(IV) upon an in situ redox process. The attachment is thus weaker than via regular covalent M-S bonds, but definitely stronger than via van der Waals interactions that have been characteristic for all known interactions of clusters on TMDC surfaces so far. Computational analyses of an extended model mimicking the electronic situation in the cluster prove the analogy to a covalent attachment on TMDCs.
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Affiliation(s)
- Eike Dornsiepen
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , Marburg D-35043 , Germany
| | - Fabian Pieck
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , Marburg D-35043 , Germany
| | - Ralf Tonner
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , Marburg D-35043 , Germany
| | - Stefanie Dehnen
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , Marburg D-35043 , Germany
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Sorribes I, Llusar R, Vicent C. Unsymmetrically Substituted Mo
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Clusters Bearing Diphosphane Ligands. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ivan Sorribes
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
| | - Rosa Llusar
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
| | - Cristian Vicent
- Serveis Centrals d'Instrumentació Científica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain, Fax: +34‐964‐387309, http://www.grupo‐rllusar.uji.es
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Kowalewski B, Poppe J, Demmer U, Warkentin E, Dierks T, Ermler U, Schneider K. Nature's polyoxometalate chemistry: X-ray structure of the Mo storage protein loaded with discrete polynuclear Mo-O clusters. J Am Chem Soc 2012; 134:9768-74. [PMID: 22612644 DOI: 10.1021/ja303084n] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Some N(2)-fixing bacteria prolong the functionality of nitrogenase in molybdenum starvation by a special Mo storage protein (MoSto) that can store more than 100 Mo atoms. The presented 1.6 Å X-ray structure of MoSto from Azotobacter vinelandii reveals various discrete polyoxomolybdate clusters, three covalently and three noncovalently bound Mo(8), three Mo(5-7), and one Mo(3) clusters, and several low occupied, so far undefinable clusters, which are embedded in specific pockets inside a locked cage-shaped (αβ)(3) protein complex. The structurally identical Mo(8) clusters (three layers of two, four, and two MoO(n) octahedra) are distinguishable from the [Mo(8)O(26)](4-) cluster formed in acidic solutions by two displaced MoO(n) octahedra implicating three kinetically labile terminal ligands. Stabilization in the covalent Mo(8) cluster is achieved by Mo bonding to Hisα156-N(ε2) and Gluα129-O(ε1). The absence of covalent protein interactions in the noncovalent Mo(8) cluster is compensated by a more extended hydrogen-bond network involving three pronounced histidines. One displaced MoO(n) octahedron might serve as nucleation site for an inhomogeneous Mo(5-7) cluster largely surrounded by bulk solvent. In the Mo(3) cluster located on the 3-fold axis, the three accurately positioned His140-N(ε2) atoms of the α subunits coordinate to the Mo atoms. The formed polyoxomolybdate clusters of MoSto, not detectable in bulk solvent, are the result of an interplay between self- and protein-driven assembly processes that unite inorganic supramolecular and protein chemistry in a host-guest system. Template, nucleation/protection, and catalyst functions of the polypeptide as well as perspectives for designing new clusters are discussed.
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Affiliation(s)
- Björn Kowalewski
- Biochemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, D-33615 Bielefeld, Germany
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Llusar R, Sorribes I, Vicent C. Mixed-Metal Assemblies Based on Cyanide-Bridged Cubane-Type Mo3CuS4/Mo3S4 Clusters and Molybdenum Carbonyls. Inorg Chem 2009; 48:4837-46. [DOI: 10.1021/ic9002302] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rosa Llusar
- Departament de Química Física i Analítica, Universitat Jaume I, Avenida Sos Baynat s/n, 12071 Castelló, Spain
| | - Ivan Sorribes
- Departament de Química Física i Analítica, Universitat Jaume I, Avenida Sos Baynat s/n, 12071 Castelló, Spain
| | - Cristian Vicent
- Serveis Centrals d’Instrumentació Científica, Universitat Jaume I, Avenida Sos Baynat s/n, 12071 Castelló, Spain
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Wang LS, Sheng TL, Wang X, Chen DB, Hu SM, Fu RB, Xiang SC, Wu XT. Self-assembly of luminescent Sn(IV)/Cu/S clusters using metal thiolates as metalloligands. Inorg Chem 2008; 47:4054-9. [PMID: 18410094 DOI: 10.1021/ic701741m] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Through the use of (Bu4N)2[Sn3S4(edt)3] (edt=SCH2CH2S(2-)) and Sn(SPh)4 as metalloligands, three neutral compounds have been obtained: [(Ph3P) 2Cu] 2SnS(edt)(2).2CH2Cl2.H2O (1a), [(Ph3P) 2Cu]2SnS(edt)2.2DMF.H2O (1b), and [(Ph3P)Cu] 2Sn(SPh)(6).3H 2O (2). Single-crystal X-ray diffraction studies revealed that compounds 1a and 1b contain the same neutral butterfly-like [(Ph3P)2Cu]2SnS(edt)2 cluster, which consists of one central SnS 5 dreich trigonal bipyramid sharing one vertex and two sides with two slightly distorted CuS 2P2 tetrahedrons. Compound 2 has a linear [(Ph3P)Cu]2Sn(SPh)6 cluster that is composed of a central distorted SnS 6 octahedron sharing two opposite planes with two slightly distorted CuS 3P tetrahedrons. Compound 1a exhibited an emission at 568 nm (tau=12.86 micros) in the solid state, while in CH 2Cl 2 solution, 1a exhibited a green emission at 534 nm (tau=4.75 micros). Compound 2 showed an intense red emission at 696 nm (tau=3.64 micros) upon excitation at 307 nm in the solid state.
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Affiliation(s)
- Long-Sheng Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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Hernández-Molina R, Kalinina IV, Abramov PA, Sokolov MN, Virovets AV, Platas JG, Llusar R, Polo V, Vicent C, Fedin VP. Heterometallic Cuboidal Clusters M3M‘Q4 (M = Mo, W; M‘= Sn, Pb, As, Sb; Q = S, Se): From Coordination Compounds to Supramolecular Adducts. Inorg Chem 2007; 47:306-14. [DOI: 10.1021/ic701581u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rita Hernández-Molina
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Irina V. Kalinina
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Pavel A. Abramov
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Maxim N. Sokolov
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Alexandr V. Virovets
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Javier G. Platas
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Rosa Llusar
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Victor Polo
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Cristian Vicent
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
| | - Vladimir P. Fedin
- Departamento de Química Inorgánica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Islas Canarias, Spain, Nikolaev Institute of Inorganic Chemistry, Prospect Lavrentyeva 3, 630090 Novosibirsk, Russia, and Departament de Química Física i Analítica, Universitat Jaume I, Avda. Sos Baynat s/n, E-12071 Castelló, Spain
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Sokolov M, Gerasko O, Dybtsev D, Chubarova E, Virovets A, Vicent C, Llusar R, Fenske D, Fedin V. Supramolecular Chemistry Based on [W3S4(H2O)6Cl3]+ − A Versatile Building Block. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200300160] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Herbst K, Zanello P, Corsini M, D'Amelio N, Dahlenburg L, Brorson M. A complete family of isostructural cluster compounds with cubane-like M(3)S(4)M' cores (M = Mo, W; M' = Ni, Pd, Pt): comparative crystallography and electrochemistry. Inorg Chem 2003; 42:974-81. [PMID: 12588128 DOI: 10.1021/ic0205379] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By reaction of the geometrically incomplete cubane-like clusters [(eta(5)-Cp')(3)Mo(3)S(4))][pts] and [(eta(5)-Cp')(3)W(3)S(4)][pts] (Cp' = methylcyclopentadienyl; pts = p-toluenesulfonate) with group 10 alkene complexes, three new heterobimetallic clusters with cubane-like cluster cores were isolated: [(eta(5)-Cp')(3)W(3)S(4)M'(PPh(3))][pts] ([5][pts], M' = Pd; [6][pts], M' = Pt); [(eta(5)-Cp')(3)Mo(3)S(4)Ni(AsPh(3))][pts] ([7][pts]). The compounds [5][pts]-[7][pts] are completing the extensive series of clusters [(eta(5)-Cp')(3)M(3)S(4)M'(EPh(3))][pts] (M = Mo, W; M' = Ni, Pd, Pt; E = P, As) which allows the consequences of replacing a single type of atom on structural and NMR and UV/vis spectroscopic as well as electrochemical properties to be determined. Single-crystal X-ray structure determinations of [5][pts]-[7][pts] revealed that [5][pts] was not isomorphous to the other members of the series [(eta(5)-Cp')(3)M(3)S(4)M'(EPh(3))][pts] due to distinctly different cell parameters, which in the molecular structure of [5](+) is reflected in a slightly different orientation of the PPh(3) ligand. Electrochemical measurements on the series showed that the Mo-based clusters were more difficult to oxidize than their W-based analogues. The Pd-containing clusters underwent two-electron oxidation processes, whereas the Ni- and Pt-containing clusters underwent two separated one-electron oxidation processes.
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Affiliation(s)
- Konrad Herbst
- Haldor Topsøe A/S, Nymøllevej 55, DK-2800 Lyngby, Denmark.
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Seo MS, Fedin VP, Sokolov MN, Hernandez-Molina R, Sokolowski A, Elsegood MR, Clegg W, Sykes AG. Preparation, structure, and reactivity of Ge-containing heterometallic cube derivatives of [M(3)E(4)(H2O)(9)](4+) (M = Mo, W; E = S, Se). Inorg Chem 2001; 40:6115-22. [PMID: 11703108 DOI: 10.1021/ic010256l] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Studies leading to the incorporation of Group 14 germanium into the incomplete cuboidal clusters [M(3)E(4)(H2O)(9)](4+) (M = Mo, W; E = S, Se) have been carried out. From the clusters [Mo(3)E(4)(H2O)(9)](4+), corner-shared double cubes [Mo(6)GeE(8)(H2O)(18)] are obtained with GeO, by heating with Ge powder at 90 degrees C, or by heating with GeO(2) in the presence of H(3)PO(2) as reductant at 90 degrees C, illustrating the dominance of the double cubes. The yellow-green single cube [Mo(3)GeS(4) (H2O)(12)](6+) is only obtained by controlled air oxidation of [Mo(6)GeS(8)(H2O)(18)](8+) over a period of approximately 4 days followed by Dowex purification. In the case of the trinuclear clusters [W(3)E(4)(H2O)(9)](4+), the single cubes [W(3)GeE(4)(H2O)(12)](6+) are dominant and prepared by the reactions with GeO, or GeO(2)/H(3)PO(2). Conversion of [W(3)GeE(4)(H2O)(12)](6+) to the corresponding double cubes is achieved by reductive addition with BH(4)(-) in the presence of a further equivalent of [W(3)E(4)(H2O)(9)](4+). The crystal structures (pts(-) = p-toluene-sulfonate) of [Mo(6)GeS(8)(H2O)(18)](pts)(8).28H2O, (1); [W(6)GeS(8)(H2O)(18)](pts)(8).23H2O, (2); and [Mo(6)GeSe(8)(H2O)(18)](pts)(8).8H2O, (3); have been determined, of which (2) is the first structure of a W(6) double cube. The M-M bond lengths of approximately 2.7 A are consistent with metal-metal bonding, and the M-Ge of approximately 3.5 A corresponds to nonbonding separations. Of the Group 13-15 corner-shared double cubes from [Mo(3)S(4)(H2O)(9)](4+), [Mo(6)GeS(8)(H2O)(18)](8+) is the least reactive with [Co(dipic)(2)](-) as oxidant (0.077 M(-1) s(-1)), and [Mo(6)SnS(8)(H2O)(18)](8+) is next (14.9 M(-1) s(-1)). Both Ge and Sn (Group 14) have an even number of electrons, resulting in greater stability. In contrast, [W(6)GeS(8)(H2O)(18)](8+) is much more reactive (7.3 x 10(3) M(-1) s(-1)), and also reacts more rapidly with O(2).
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Affiliation(s)
- M S Seo
- Department of Chemistry, The University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK
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Herbst K, Dahlenburg L, Brorson M. Methylcyclopentadienyl-substituted tungsten(IV) sulfido cluster [(eta5-Cp')3W3S4]+ and its heterobimetallic derivative [(eta5-Cp')3W3S4Ni(PPh3)]+ . Inorg Chem 2001; 40:1989-92. [PMID: 11304139 DOI: 10.1021/ic001194m] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aqueous cluster salt [(H2O)9W3S4][pts]4.9H2O (pts = p-toluenesulfonate) was converted to the methylcyclopentadienyl (Cp') substituted cluster [(eta5-Cp')3W3S4][pts] ([1][pts]) from which the cubane-like cluster [(eta5-Cp')3W3S4Ni(PPh3)][pts] ([2][pts]) was obtained by reaction with Ni(cod)2 and PPh3. [2][pts] was characterized by X-ray crystal structure analysis.
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Affiliation(s)
- K Herbst
- Haldor Topsøe A/S, Nymøllevej 55, DK-2800 Lyngby, Denmark
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Tetrahedral chalcogeno thiocyanate cluster complexes [Re4Q4(SCN)12]4− (Q=S, Se, Te): synthesis and crystal structures. Polyhedron 2000. [DOI: 10.1016/s0277-5387(99)00382-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Hernandez-Molina R, Dybtsev DN, Fedin VP, Elsegood MRJ, Clegg W, Sykes AG. Preparation, Structure, and Reactivity of Heterometallic Sn-Containing Single- and Double-Cube Derivatives of [Mo3Se4(H2O)9]4+and [W3Se4(H2O)9]4+. Inorg Chem 1998. [DOI: 10.1021/ic980047+] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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New efficient synthesis of the triangular cluster [W3Se4(H2O)9]4+ and X-ray structure of the first mixed-metal seleno-bridged cubane-type tungsten-tin cluster (Me2NH2)6[(SCN)9W3Se4SnCl3]·0.5H2O. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)05794-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Yu SB, Droege M, Segal B, Downey S, Sanderson T, Fellmann J, Watson A. The synthesis, characterization and biological studies of a dimeric W3S4 cluster complex: a new potential X-ray contrast agent. Inorganica Chim Acta 1997. [DOI: 10.1016/s0020-1693(97)05567-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou J, Raebiger JW, Crawford CA, Holm RH. Metal Ion Incorporation Reactions of the Cluster [Fe3S4(LS3)]3-, Containing the Cuboidal [Fe3S4]0 Core. J Am Chem Soc 1997. [DOI: 10.1021/ja9704186] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Zhou
- Contribution from the Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - James W. Raebiger
- Contribution from the Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Charles A. Crawford
- Contribution from the Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - R. H. Holm
- Contribution from the Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
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Uptake of ethylene by sulfur-bridged cubane-type molybdenum/tungsten-nickel clusters [M3NiS4(H2O)10]4+ M3=Mo3, Mo2W, MoW2, W3): syntheses, structures and 1H NMR spectra. Inorganica Chim Acta 1996. [DOI: 10.1016/s0020-1693(96)05274-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Varey JE, Lamprecht GJ, Fedin VP, Holder A, Clegg W, Elsegood MRJ, Sykes AG. Interconversion and Reactivity of Two Heterometallic Tin-Containing Cuboidal Clusters from [Mo(3)S(4)(H(2)O)(9)](4+): X-ray Structure of the Single Cube with an Mo(3)SnS(4) Core. Inorg Chem 1996; 35:5525-5530. [PMID: 11666741 DOI: 10.1021/ic951659m] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Mo(3)SnS(4)(6+) single cube is obtained by direct addition of Sn(2+) to [Mo(3)S(4)(H(2)O)(9)](4+). UV-vis spectra of the product (0.13 mM) in 2.00 M HClO(4), Hpts, and HCl indicate a marked affinity of the Sn for Cl(-), with formation of the more strongly yellow [Mo(3)(SnCl(3))S(4)(H(2)O)(9)](3+) complex complete in as little as 0.050 M Cl(-). The X-ray crystal structure of (Me(2)NH(2))(6)[Mo(3)(SnCl(3))S(4)(NCS)(9)].0.5H(2)O has been determined and gives Mo-Mo (mean 2.730 Å) and Mo-Sn (mean 3.732 Å) distances, with a difference close to 1 Å. The red-purple double cube cation [Mo(6)SnS(8)(H(2)O)(18)](8+) is obtained by reacting Sn metal with [Mo(3)S(4)(H(2)O)(9)](4+). The double cube is also obtained in approximately 50% yield by BH(4)(-) reduction of a 1:1 mixture of [Mo(3)SnS(4)(H(2)O)(10)](6+) and [Mo(3)S(4)(H(2)O)(9)](4+). Conversely two-electron oxidation of [Mo(6)SnS(8)(H(2)O)(18)](8+) with [Co(dipic)(2)](-) or [Fe(H(2)O(6)](3+) gives the single cube [Mo(3)SnS(4)(H(2)O)(12)](6+) and [Mo(3)S(4)(H(2)O)(9)](4+) (up to 70% yield), followed by further two-electron oxidation to [Mo(3)S(4)(H(2)O)(9)](4+) and Sn(IV). The kinetics of the first stages have been studied using the stopped-flow method and give rate laws first order in [Mo(6)SnS(8)(H(2)O)(18)](8+) and the Co(III) or Fe(III) oxidant. The oxidation with [Co(dipic)(2)](-) has no [H(+)] dependence, [H(+)] = 0.50-2.00 M. With Fe(III) as oxidant, reaction steps involving [Fe(H(2)O)(6)](3+) and [Fe(H(2)O)(5)OH](2+) are implicated. At 25 degrees C and I = 2.00 M (Li(pts)) k(Co) is 14.9 M(-)(1) s(-)(1) and k(a) for the reaction of [Fe(H(2)O)(6)](3+) is 0.68 M(-)(1) s(-)(1) (both outer-sphere reactions). Reaction of Cu(2+) with the double but not the single cube is observed, yielding [Mo(3)CuS(4)(H(2)O)(10)](5+). A redox-controlled mechanism involving intermediate formation of Cu(+) and [Mo(3)S(4)(H(2)O)(9)](4+) accounts for the changes observed.
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Affiliation(s)
- Jane E. Varey
- Department of Chemistry, University of Newcastle, Newcastle upon Tyne NE1 7RU, U.K
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Fedin VP, Elsegood MR, Clegg W, Sykes A. High-yield synthesis of the cuboidal rhenium cluster [Re4S4(CN)12]4− by reaction of the triangular cluster [Re3S7Br6]+ with cyanide. Polyhedron 1996. [DOI: 10.1016/0277-5387(95)00226-i] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Müller A, Reuter H, Dillinger S. Supramolekulare Anorganische Chemie: von Gästen in kleinen und großen Wirten. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951072104] [Citation(s) in RCA: 99] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Müller A, Krahn E. On the Synthesis of the FeMo Cofactor of Nitrogenase: Gene-Controlled in Nature versus Laboratory-Produced by Man. ACTA ACUST UNITED AC 1995. [DOI: 10.1002/anie.199510711] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Müller A, Krahn E. Zur Bildung des FeMo-Cofaktors der Nitrogenase in der Natur und im Reagensglas – ein Zusammenspiel von Genetik und Chemie. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951071005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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