The First Dinuclear Nickel(II) Thiosulfate Obtained From Oxidation of Tri‐tert‐butoxysilanethiol. Contributions to the Chemistry of Silicon‐Sulfur Compounds No. 78[1]

Abstract

AbstractThe title complex, neutral {[Ni2(μ‐S2O3)2(C7H9N)4H2O]C7H8} (1), presents a dinuclear structure with the thiosulfate group acting as a (S, O) chelate and simultaneously as a (S) bridge. The molecular structure was determined by X‐ray crystallography. Complex 1 crystallizes as a hydrogen‐bonded dimer with molecule of toluene solvent in the unit cell. The environment of both central nickel atoms is octahedral with NiN2O2S2 cores. This is the first metal thiosulfate complex isolated as a product of the oxidation of silanethiol. A mechanism of the reaction involving the formation of (RO)3SiSSSi(OR)3 intermediate is proposed with the subsequent cleavage of Si–S bond.