Synthesis and characterization of a tin(II) bis(phosphinoyl)methanediide complex: a stannavinylidene derivative.

The reaction of [CH(2)(PPh(2)=NSiMe(3))(PPh(2)=S)] (1) with two equivalents of [Sn{N(SiMe(3))(2)}(2)] in refluxing toluene afforded novel tin(II) bis(phosphinoyl)methanediide complex 3. The structure of compound 3 has been determined by X-ray crystallography and DFT calculations. The topological analysis of the electron densities of compound 3 was performed.