Self-assembly of di- and triorganotin(IV) complexes: Syntheses, characterization and crystal structures of 1D polymeric chain containing O,O-diethyl or O,O-diisopropyl phosphoric acid ligands

A series of organotin(IV) complexes with O,O-diethyl phosphoric acid (L1H) and O,O-diisopropyl phosphoric acid (L2H) of the types: [R3Sn · L]n (L = L1, R = Ph 1, R = PhCH22, R = Me 3, R = Bu 4; L = L2, R = Ph 9, R = PhCH210, R = Me 11, R = Bu 12), [R2Cl Sn · L]n (L = L1, R = Me 5, R = Ph 6, R = PhCH27, R = Bu 8; L = L2, R = Me 13, R = Ph 14, R = PhCH215, R = Bu 16), have been synthesized. All complexes were characterized by elemental analysis, TGA, IR and NMR (1H, 13C, 31P and 119Sn) spectroscopy analysis. Among them, complexes 1, 2, 3, 5, 8, 9 and 11 have been characterized by X-ray crystallography diffraction analysis. In the crystalline state, the complexes adopt infinite 1D infinite chain structures which are generated by the bidentate bridging phosphonate ligands and the five-coordinated tin centers.

Graphical abstractA series of organotin(IV) complexes with O,O-diethyl phosphoric acid (L1H) and O,O-diisopropyl phosphoric acid (L2H) of the types: [R3Sn · L]n (L = L1, R = Ph 1, R = PhCH22, R = Me 3, R = Bu 4; L = L2, R = Ph 9, R = PhCH210, R = Me 11, R = Bu 12), [R2Cl Sn · L]n (L = L1, R = Me 5, R = Ph 6, R = PhCH27, R = Bu 8; L = L2, R = Me 13, R = Ph 14, R = PhCH215, R = Bu 16), have been synthesized. All complexes were characterized by elemental analysis, TGA, IR and NMR (1H, 13C, 31P and 119Sn) spectroscopy analysis. Among them, complexes 1, 2, 3, 5, 8, 9 and 11 have been characterized by X-ray crystallography diffraction analysis. In the crystalline state, the complexes adopt infinite 1D infinite chain structures which are generated by the bidentate bridging phosphonate ligands and the five-coordinated tin centers.Figure optionsDownload full-size imageDownload as PowerPoint slide