Synthesis, Characterization and Properties of Arylamine-Acetylene Bridged Tetrahedral Cobalt and Iron Carbonyl Clusters

Abstract

Four new arylamine-acetylene bridged tetrahedral iron and cobalt carbonyl clusters, [Co2(CO)4(μ-CO)2(η2, μ-TMSCCPh)2N 1, [Fe2(CO)6(μ-CO)(η2, μ-TMSCCPh)NH(PhCC TMS)] 2, [(Co2(CO)6(η2, μ-TMSCCPh))33 and [(Fe2(CO)6(μ-CO)(η2, μ-TMSCCPh))2N(Ph CCTMS)] 4, were obtained by reactions of Co2(CO)8and Fe3(CO)12with the bis [4-((trimethylsilyl) ethynyl) phenyamine and tris [4-((trimethylsilyl) ethynyl) phenyamine compounds in suitable solvent, respectively. All clusters are confirmed by C/H elemental analysis, MS,1HNMR and FT-IR spectroscopy. Furthermore, the electrochemical and optical properties of some clusters were also determined by cyclic voltammogram (CV) analysis and UV-Vis spectra.