Brunner, Henri and Hollman, Andrea and Zabel, Manfred and Nuber, Bernhard (2000) The ligand [Cp2MoH2] in complexes with Ag-S bonds. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 609 (1-2). pp. 44-52. ISSN 0022-328X
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The reaction of [Cp2MoH2] and AgBF4 with the dithio-ligands Na(S2CNR2) (R = Et, Ph), Na(S2CMe), NH4(S2P(OEt)(2)) and K((S2COPr)-Pr-t) gives the complexes [(Cp2MoH2AgS2CNR2)(2)] (R = Et 1, Ph 2), [(Cp2MoH2AgS2CMe)(2)] (3), [(Cp2MoH2AgS2P-(OEt)(2))(2)] (4) and [((Cp2MoH2AgS2COPr)-Pr-i)(n)] (6) with probably n = 2, all with a [Cp2MoH2]:Ag:dithio-ligand stoichiometry of 1:1:1. 1-4 form dimers in which two dithio-ligands bridge two silver atoms. In 1 and 2 one sulphur atom is coordinated to one silver atom, whereas the other is coordinated to both sliver atoms. In 3 and 4 each sulphur atom is bonded to one silver atom only. In 1-3 there is a silver-silver bond. However, in 4 the Ag...Ag distance is too long for an Ag-Ag bend. Crystallization of the compound 6 afforded a polymer [(Cp2MoH2Ag4((S2COPr)-Pr-i)(4))(n)] (7) with a stoichiometry [Cp2MoH2]:Ag:dithio-ligand = 1:4:4. The polymer forms sheets with rings surrounding a [Cp2MoH2] ligand bonded to one of the four silver atoms. The monomer [(Cp2MoH2)AgS2COEt] (5) with a stoichiometry [Cp2MoH2]:Ag:dithio-ligand = 2:1:1 was prepared by addition of Na(S2COEt) to [Cp2MoH2] and AgBF4. In 5 the xanthogenate ligand is bonded with both sulphur atoms to the silver atom. The compounds 1-6 were characterized analytically and spectroscopically. The structures of 1-5 and 7 were determined by single crystal X-ray analyses. (C) 2000 Published by Elsevier Science S.A. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHEMISTRY; molybdenum; silver; dithio-ligands; clusters; crystal structures |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Henri Brunner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Mar 2022 09:54 |
| Last Modified: | 23 Mar 2022 09:54 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42208 |
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