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 [Re(6)Q(8)(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)(mu(3)-O)(2){Re6Se8(CN)(6)} (III), and [(SnMe2)(4)(mu(3)-O)(2)(mu(2)-OH)(2)(H2O)(2)]{SnMe3}(2){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 [Re(6)Q(8)(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)(mu(3)-O)(2)](4+) formed due to the hydrolysis of the initial SnMe3Cl.