Vibrational Spectra and Normal Coordinate Analysis of Tris-Bipyridine Ruthenium (II)

摘要

The infrared and resonance Raman spectra of the tris-bipyridine ruthenium(II) complex and several of its deuterated analogues are reported; specifically, those of the complexes of 3,3'-dideutero-2,2'-bipyridine, 6,6'-dideutero-2,2'-bipyridine and perdeutero-2,2'-bipyridine. Multiple excitation lines are employed to obtain the resonance Raman spectra in order to facilitate observation of all A sub 1 fundamental vibrations associated with the ligand framework. Normal coordinate calculations are carried out employing a systematic procedure based on a modified valence force field which is comparable to those used previously for aromatic molecules. The resultant (30 force constant) field reproduces observed frequencies with an average error of approx.2%. 28 refs., 3 figs., 3 tabs. (ERA citation 13:009213)