A. Topaçli, S. Bayari
Jul 1, 1999
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Influential Citations
20
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Journal
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Abstract
Abstract A normal coordinate analysis is carried out to obtain the Urey-Bradley force constants for 4-ethylpyridine (4-etpy) assuming an under C 2 v point group. These constants are adjusted to fit the observed frequencies for 4-etpy and its deuterated species. The calculated frequencies allowed the vibrational assignments of the normal modes of 4-etpy. These assignments are confirmed by the calculations of the potential energy distributions on 4-etpy. Additional information is obtained from the vibrational spectra of Cd (4-etpy) 2 M (CN) 4 (MCd, Hg) and calculated wavenumbers of metal (Cd) bonded 4-etpy. It is shown that the ring vibrations in pyridine are to be effected upon metal substitution. These results have also provided certainty for the vibrational assignments.