First functionalized diorganotin (IV) derivative containing the imidobis(diphenylselenophosphinate-Se,Se′ ligand. The synthesis and X-ray crystal structures of Bu2Sn[{N(SePPh2)2-Se,Se′}2] and Ph2ClSn[N(SePPh2)2-Se,Se′]·H2O

摘要: Reaction of the appropriate R2SnCl2 with potassium salt of the imidobis(diphenylselenophosphinate-Se,Se') ligand (1c) in 1:2 stoichiometry yields n-Bu2Sn[{N(SePPh2}(2)-Se,Se')(2)] (2) and Ph2ClSn[N(SePPh2)(2)-Se,Se']. H2O (3). The crystal and the molecular structures both compounds were determined by X-ray diffractometry. core geometry in compound 2 is a quasi perfect octahedron. Two selenide ligands are coordinated symmetrically to tin atom forming spiro-bicyclic NP2Se2SnSe2P2N system [Sigma(Se-Sn-Se) = 360 degrees]. Both organo substituents trans positions [(C'-Sn-C'A) = 180.0(1)degrees] they almost perpendicular SnSe4 plane. In derivative 3 only one selenium-based is coordinated asymmetrically unexpectedly a chlorine remains attached metal center. The geometry around corresponds distorted trigonal bipyramid Se(1) Cl atoms at axial positions.