JOURNAL OF CHILEAN CHEMICAL SOCIETY

Vol 64 No 2 (2019): Journal of the Chilean Chemical Society
Original Research Papers

SYNTHESIS AND CHARACTERIZATION OF A TETRAHEDRAL AND MONOMERIC MONOBUTYLTIN COMPOUND WITH Α-HYDROXYISOBUTYRIC ACID

Roberto Santos Barbiéri
Centro Universi tário de Carat inga - UNEC
Vilma Reis Terra
Centro Universi tário de Vi la Velha - UVV
Allan Kardec Carlos Dias
Centro Universi tário de Carat inga - UNEC
Walclée de Carvalho Melo
Universidade Federal de Lavras - UFLA
Published July 25, 2019
Keywords
  • organotin compound,
  • tin isobutyric acid compound,
  • thermal decomposition

Abstract

 The monobutyltin compound [BuSnLCl2], L = Me2C(OH)COO--, was prepared and characterized by elemental analysis of carbon, hydrogen, chlorine and tin, and infrared, 119mSn-Mössbauer and 119mSn-NMR spectroscopies. In the compound, a tetrahedral tin species, L is coordinated monodentatedly by the oxygen of the deprotonated hydroxyl of the carboxylic group. The compound was studied by the application of TG and DSC in dynamic atmosphere of helium. The termal decomposition mechanism for the compound and TG curve suggests the formation of tin in accordance with their stoichiometry. The Mössbauer parameters of complexes are in agreement with a monomeric structure for the complex in the solid state.

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