Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (01): 19-24.doi: 10.3866/PKU.WHXB20122819

• THERMODYNAMICS, KINETICS, AND STRUCTURAL CHEMISTRY • Previous Articles     Next Articles

Bond Valence Parameters for Sn(II)―X and Sn(IV)―X (X=O, S, N, C, P, As, Se, Te, F, Cl, Br, I)

HU Sheng-Zhi1, XIE Zhao-Xiong1,2, PALENIK G. J.3   

  1. 1. Department of Chemistry, Xiamen University, Xiamen 361005, Fujian Province, P. R. China;
    2. State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, Fujian Province, P. R. China;
    3. Chemistry Department, The University of Floride, P. O. Box 117200, Gainesville, FL 32611-7200, USA
  • Received:2011-09-13 Revised:2011-11-06 Published:2011-12-29
  • Contact: HU Sheng-Zhi E-mail:szhu@xmu.edu.cn

Abstract: The bond valence parameters (R0) for homoleptic Sn(II)―X and Sn(IV)―X complexes, where X=O, S, N, C, P, As, Se, Te, F, Cl, Br, and I, were determined using data retrieved from the Cambridge Structural Database with bond valence parameter B=0.037 nm. Some are the first reported experimental values for Sn(II)―X or Sn(IV)―X bonds. In the case of Sn(II)―O, R0=0.1956 nm with B=0.037 nm can be used to assign the oxidation state of the central Sn(II) ion for almost all coordination numbers. In contrast, the reported parameter set of R0=0.1859 nm with B=0.055 nm appears applicable mainly to complexes with a low coordination number. Our results suggest that further studies of bond valence parameters are required to better understand the factors that are important in bond valence sum (BVS) calculations.

Key words: Tin compound, Bond valence parameter, Oxidation state, Secondary bond

MSC2000: 

  • O641