Normal coordinate analysis and spectral band assignments for the out-of-plane infrared active vibrations of diaquo tetra-- acetato dichromium (II) complex

Abstract

 A normal coordinate analysis on diaquo tetra-acetato dichromiun (II) gives calculated frequencies in
 good agreement with the observed ones in the range 4000 and 400cm^-1 for the out-of-plane infrared
 active vibrations of the complex. In order to make theoretical band assignments and to see the coupling
 between various modes in each band, the potential energy distribution in each normal vibration was
 calculated. The results showed that 80.36% of these vibrations lie within the range investigated,
 including 563 and 543cm^-1 bands assigned to asymmetric bridging Cr-O stretching vibrations