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E-Journal of Chemistry
Volume 5 (2008), Issue 4, Pages 723-735

Vibrational and Quantum Chemical Study of Triphenylantimony(V)-o-salicylate

Tanveer Hasan,1 P. K. Singh,1 P. Raj,2 K. Singhal,2 and Neeraj Misra1

1Department of Physics, Lucknow University, Lucknow-226007, India
2Department of Chemistry, Lucknow University, Lucknow-226007, India

Received 20 November 2007; Accepted 15 January 2008

Copyright © 2008 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A complete normal coordinate analysis was performed by two different methods: a classical Wilson G-F matrix method and the semi-empirical molecular orbital PM3 method, for a five coordinate non rigid triphenyl antimony diester SbPh3(O2CR)2,[R=C6H4OH-o], known to be a bioactive molecule. The study of vibrational spectra suggested that the title compound might have secondary bonding interaction between the central antimony atom and the carbonyl oxygen atoms. The atomic charge distribution, geometry optimization and thermochemistry, were also calculated by PM3 method, which help in finding the potential sites of the title compound.