Extended normal coordinate analysis of an (arene)osmium(II) complex with the inclusion of the ring ligand

Abstract

Results are presented of an optimized valence force field of the dihydridoosmium(II) complex [(mes)OsH 2(CO)] (mesC 6H 3(CH 3) 3-2,4,6) in which the ring was treated as a point mass. The Raman and IR spectra of metal-coordinated mesitylene are given and the results of normal coordinate analysis of the arene described. From the results, a modified general valence force field including the whole ring ligand has been calculated. The results are discussed, and compared with those of the model with point mass approximation.