Heterometallic cubane-type clusters [M′Mo_3S_4] (M′ = Au, Ag and Cu): Synthesis, structures and electrochemical properties

摘要

The heterometallic cubane-type clusters [(Cp*Mo)_3(μ _3-S)_4Au(PR_3)][PF_6][X] (Cp* = η~5-C_5Me_5; 2a: R = Ph, X = BF_4; 2b: R = Cy, X = PF_6; 2c: R = ~tBu, X = PF_6), [(Cp*Mo)_3(μ_3-S)_4Ag(PPh _3)][PF_6][OTf] (3, OTf = OSO_2CF_3) and [(Cp*Mo)_3(μ_3-S)_4CuI][PF_6] (4) have been prepared by the reaction of [(Cp*Mo) _3(μ_2-S)_3(μ_3-S)][PF _6] (1) with complexes [(R_3P)Au][X], [(Ph _3P)Ag][OTf] and CuI, respectively. These clusters have been spectroscopically and crystallographically characterized. In addition, the electrochemical properties of clusters 2a, 2b, 2c and 4 are also discussed.