Monomeric, dimeric and polymeric [Cp2MoH2] complexes with Ag---S bonds |
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| Authors: | Henri Brunner Andrea Hollman Manfred Zabel |
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| Affiliation: | Institut für Anorganische Chemie, Universität Regensburg, D-93040 Regensburg, Germany |
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| Abstract: | The reaction of [Cp2MoH2] and AgBF4 with the dithio ligands Na(S2CPh) and K(S2COiPr) afforded the complexes [(Cp2MoH2AgS2CPh)2] (1) and [(Cp2MoH2AgS2COiPr)2] (2). Using the monothio ligands Na(SC(O)Ph), K(SC(O)CH3) and Na(S(NHPh)C=C(CN)2) the complexes [(Cp2MoH2AgSC(O)Ph)2] (3), [((Cp2MoH2)2(AgSC(O)CH3)3)n] (4) and [(Cp2MoH2)2AgS(NHPh)C=C(CN)2] (6) were formed. The reaction of thiobenzamide and [(Cp2MoH2)2AgCl] gave the complex [(Cp2MoH2Ag(Cl)S(NH2)CPh)2] (5). Complexes 1 and 2 have a dimeric structure with the two dithio ligands bridging the two silver atoms. Complex 3 is also a dimer, however, the monothio ligands are coordinated with their single sulphur atoms to the silver atoms. In the polymer 4 the thioacetate ligand has the same bonding mode as in 3. The three-dimensional structure of 4 is built-up of parallel strings. In the dimer 5 the thiobenzamide ligands bind with the sulphur atom to a silver atom each. Complex 6 has a monomeric structure in which the silver atom is coordinated to two [Cp2MoH2] ligands and to the sulphur atom of the S(NHPh)C=C(CN)2 ligand. Compounds 1–6 were characterised analytically and spectroscopically and the structures were determined by single crystal X-ray analyses. |
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| Keywords: | Molybdenum Silver Thio ligands Clusters Crystal structures |
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