Syntheses, Characterization and Crystal Structures of Diorganotin(Ⅳ) Selenites: 1D Helical Double-Chain Containing Eight-Membered Sn_2O_4Se_2 Inorganic Ring

摘要

Three new diorganotin(Ⅳ) selenites, [Bu_2Sn (O_2SeC_6H_5OMe)_2]_n (1), [Me_2Sn(O_2SeC_6H_4CHMe_2)_2]_n (2), [Me_2Sn(O_2SeC_6H_4Et)_2]_n (3) have been synthesized and structurally characterized by elemental analysis, FT-IR, NMR (~1H, ~(13)C and ~(119)Sn) spectra, TGA, and X-ray crystallography. The X-ray reveals that complexes 1-3 are 1D infinite double-chain polymers. The molecular of complex 1 is further linked by intermolecular C-H···O interactions to form a 2D network polymer. Complex 3 is linked by C-H··· O interactions to form a 3D organotin framework.