Collect. Czech. Chem. Commun. 1985, 50, 329-335

Bond properties of anionic mixed halogeno-complexes InX3Y- (X ≠ Y = Cl, Br, I)

D. R. Singha, U. P. Vermaa, A. N. P. Pandeya and Bohuslav Strauchb

a Molecular Spectroscopy Research Laboratory, Department of Physics, Meerut College, Meerut 250 001, India
b Department of Inorganic Chemistry, Charles University, 128 40 Prague 2, Czechoslovakia


The normal coordinate analysis has been performed for the anionic mixed halogeno-complexes InX3Y- (X ≠ Y = Cl, Br, I). The trends among the force constants are discussed and the assignments of the observed fundamental frequencies are examined thoroughly. It has been found that the present analysis provides reliable data to introduce a light into the bond properties of InX3Y- ions. In addition to this the mean amplitudes of vibrations, bond order and bond polarizability derivatives have been studied for the systems under investigation and a comparison of bond parameters among the halides of indium are made.