Monoorganotin-polyoxometal-compounds. Part IV: Na_2[(~iPrSn_3)(OV)_4O_(10)(OH) _3]·5H_2O·3DMSO, a novel branched tetravanadate(V) stabilized by a trimeric monoorganotin-oxo-hydroxo unit

摘要

Via self-assembly of the molecular precursors sodium orthovanadate and isopropyltin-dihydroxide-chloride the unprecedented organic-inorganic hybrid polyoxoanion [(~iPrSn)_3(OV)_4O _(10)(OH)_3]~(2-) was synthesized in dimethylsulfoxide (DMSO) and isolated as its sodium salt Na_2[(~iPrSn) _3(OV)_4O_(10)(OH)_3]·5H _2O·3DMSO. This spherical nanosized anion is composed of two different structural subunits, a well-known trinuclear monoorganotin-polyoxo- hydroxo unit with octahedrally coordinated tin atoms and a new open-chain, branched isopolyoxo tetravanadate(V) with tetrahedrally coordinated vanadium atoms.