N,S- and N,O-Substituted Stannylenes: Preparation and X-ray Diffraction Studies

Zabula AV, Pape T, Hupka F, Hepp A, Hahn FE

Research article (journal)

Abstract

The reaction of 2 equiv of Sn[N(SiMe3)(2)](2) with 1,2-benzodithiol gave the unstable N,S-substituted bis-stannylene 1, which decomposes in solution to yield Sn[N(SiMe3)(2)](2) and the S-heterocyclic stannylene 2. An X-ray diffraction analysis with crystals of 1 revealed the presence of two three-coordinated tin atoms with an S,S,N donor set and strong intramolecular Sn-S interactions. The related reaction of 3 equiv of 3n[N(SiMe3)(2)](2) with 2 equiv of 1,2-benzodiol gave the tris-stannylene 3 with two different types of Sn-II atoms. An X-ray diffraction analysis with crystals of 3 shows the central tin (II) atom to, be coordinated by four oxygen donors while two additional peripheral tin(II) atoms are three-coordinated by a mixed O,O,N donor set. The central O4Sn core in 3 Is strongly pyramidalized. In contrast to bis-stannylene 1 tris-stannylene 3 is stable both in the solid state and in solution.

Details zur Publikation

Release year: 2009
Language in which the publication is written: English