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Synthesis and Characterization of Some Triphenyltin(IV) Complexes from Sterically Crowded [(( E )-1-{2-Hydroxy-5-[( E )-2-(aryl)-1-diazenyl]phenyl}methylidene)amino]acetate Ligands and Crystal Structure Analysis of a Tetrameric Triphenyltin(IV) Compound

Basu Baul, Tushar ; Das, Pradip ; Eng, George ; Linden, Anthony

In: Journal of Inorganic and Organometallic Polymers and Materials, 2010, vol. 20, no. 1, p. 134-141

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    Title
    • Synthesis and Characterization of Some Triphenyltin(IV) Complexes from Sterically Crowded [(( E )-1-{2-Hydroxy-5-[( E )-2-(aryl)-1-diazenyl]phenyl}methylidene)amino]acetate Ligands and Crystal Structure Analysis of a Tetrameric Triphenyltin(IV) Compound
    Author
    • Basu Baul, Tushar. Department of Chemistry, North-Eastern Hill University, NEHU Permanent Campus, Umshing, 793-022, Shillong, India
    • Das, Pradip. Department of Chemistry, North-Eastern Hill University, NEHU Permanent Campus, Umshing, 793-022, Shillong, India
    • Eng, George. Department of Chemistry and Physics, University of the District of Columbia, 20008, Washington, DC, USA
    • Linden, Anthony. Institute of Organic Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
    Document Type
    • Postprint
    Language
    • English
    Published in
    • Journal of Inorganic and Organometallic Polymers and Materials, 2010, vol. 20, no. 1, p. 134-141. Springer US; http://www.springer-ny.com
    Other Version
    OAI-PMH Identifier
    • oai:doc.rero.ch:317298
    Summary
    Four new triphenyltin(IV) complexes containing [((E)-1-{2-hydroxy-5-[(E)-2-(aryl)-1-diazenyl]phenyl}methylidene)amino]acetate ligands (L) have been synthesized with formulations of Ph3SnLH. They have been studied by multinuclear (1H, 13C, 119Sn) NMR, 119Sn Mössbauer and IR spectroscopy. A full characterization of one complex, Ph3SnL1H (1), was accomplished by single crystal X-ray crystallography, which revealed the compound to be a macrocyclic tetramer. In the tetramer, the five coordinate tin atoms have distorted trigonal bipyramidal geometries with the three phenyl groups occupying equatorial positions, while an oxygen atom of the carboxylate group of one L ligand and the oxide O-atom (formerly the hydroxy group) of a second L ligand in an apical positions. The carboxylate ligands bridge adjacent tin atoms and coordinate in the zwitterionic form with the phenolic proton moved to the nearby nitrogen atom. 119Sn NMR results indicate that the tetrameric structures of the complexes in the solid state, in which the tin atoms are five-coordinated, dissociate in solution to yield four coordinate monomeric species