Synthesis and characterization of diorganotin(IV) complexes of tetradentate Schiff bases: Crystal structure of n-Bu2Sn(Vanophen)

Dilip Kumar Dey, Manas Kumar Saha, Mrinal Kanti Das, Neetu Bhartiya, R. K. Bansal, Georgina Rosair, Samiran Mitra

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Abstract

Diorganotin(IV) complexes of the general formula R2SnL (R=Ph, n-Bu and Me) have been prepared from diorganotin(IV) dichlorides (R2SnCl2) and tetradentate Schiff bases (H2L) containing N2O2 donor atoms in the presence of triethylamine in benzene. The Schiff bases, H2L, were derived from salicylaldehyde, 3-methoxysalicylaldehyde (o-vanillin), 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and diamines such as o-phenylenediamine and 1,3-propylenediamine. The complexes were characterized by IR, NMR (1H, 13C, 119Sn) and elemental analysis. The structure of the complex, n-Bu2Sn(Vanophen), was determined using single crystal X-ray diffraction. The tin atom has a distorted octahedral coordination, with the Vanophen ligand occupying the four equatorial positions and the n-butyl groups in the trans axial positions. Six-coordinated distorted octahedral structures have been proposed for all diorganotin(IV) complexes studied here, as they possess similar spectroscopic data. © Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)2687-2696
Number of pages10
JournalPolyhedron
Volume18
Issue number20
Publication statusPublished - 27 Aug 1999

Keywords

  • 13C/119Sn NMR spectra
  • Crystal structure
  • Diorganotin(IV) complexes
  • Tetradentate Schiff bases

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    Dey, D. K., Saha, M. K., Das, M. K., Bhartiya, N., Bansal, R. K., Rosair, G., & Mitra, S. (1999). Synthesis and characterization of diorganotin(IV) complexes of tetradentate Schiff bases: Crystal structure of n-Bu2Sn(Vanophen). Polyhedron, 18(20), 2687-2696.