SOME NEW SELENIATO DERIVATIVES AND ADDUCTS ORGANOSTANIC CONTAINING SNR2 RESIDUES (R=ME, BU, TBU) AND HALOSTANNIC: SYNTHESIS, INFRARED AND 119SN NMR STUDIES
Journal: International Journal of Advanced Research (Vol.10, No. 02)Publication Date: 2022-02-17
Authors : Waly Diallo Bocar Traore Dame Seye Cheikh Abdou Khadir Diop; Mamadou Sidibe;
Page : 921-927
Keywords : Seleniato Infrared NMR Spectroscopies Discrete Dimeric;
Abstract
Seven new selenato and hydrogenoselenatoadducts and derivativesorganostannic containing SnR2 (R=Me, Bu) residues, SnR2Cl2 (R=Bu, tBu)andhalostannic containing SnCl2 molecule have been synthesizedin methanol or ethanol solution in room temperature or at reflux. The complexes have been studied by infrared and 119Sn NMR spectroscopies.The suggested structuresfor the organotin (IV) compounds are discrete or dimer in which the seleniateligandsaremonodentate (for one of them) and monochelating or bichelating for the others SnR2Cl residues aretetrahedral and SnR2 residues are linear.Then, in the case of halostannic adducts, the suggested structuresare based in the process of an oxydation of tin (II) atom to tin (IV) atom. The initial SnCl2molecule become SnCl4. A dimerization of the molecule formular and rearrangementhave been considered, giving an ionic structure with one cation component and one molecule component stabilized by the ammonium cation. When the ammonium cations in hydrogen bonds are involved, supramolecular architectures may be obtained.
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