Synthesis and structure of novel coordination compounds based on [Re6Q8(CN)6]4– (Q = S, Se) and (SnMe3)+

The reactions of SnMe3Cl with salts of the cluster anionic complexes [Re6Q8(CN)6]4− (Q = S, Se) gave novel complexes [{(SnMe3)2(OH)}2{SnMe3}2{Re6S8(CN)6}] (I), (Me4N)2[{SnMe3(H2O)}2{Re6Se8(CN)6}] (II), [{(SnMe2)4(μ3-O)}2{Re6Se8(CN)6}] (III), and [(SnMe2)4(μ3-O)2(μ2-OH)2(H2O)2][{SnMe32{Re6Se8(CN)6}] (IV). The structures of I–IV were determined by X-ray diffraction. Compounds I, IV have the chain structures with the CN-SnMe3-NC bridges between the cluster anions [Re6Q8(CN)6]4−. Compound II contains isolated fragments {SnMe3(H2O)}2{Re6Se8(CN)6}2−. In the polymer framework of compound III, the cluster anionic complexes [Re6Se8(CN)6]4− are bound by the complex cations [(SnMe2)4(μ3-O)2]4+ formed due to the hydrolysis of the initial (SnMe3)Cl.