A TUNGSTEN NITROSYL COMPLEX

Insertion of nitric oxide into one W-C bond a bis(trimethylsilyl)tungs ten complex results in formation of a bidentate N-trimethylsilylmethyl -N-nitrosohydroxylaminato ligand. The resulting complex, (eta(5)-cyclo pentadienyl)nitrosyl(trimethylsilyl- thylsilylmethyl-N-nitrosohydroxyl aminato)tungsten, [W(NO)(C5H5)(C4H11N2O2Si)(C4H11Si)], crystallizes in space group P $($) over bar$$ 1, Z = 4 (two molecules per asymmetric unit). The two independent molecules are almost identical and have a f our-legged piano stool structure with a five-coordinate W atom.