Calculation of normal vibrations for a chromium complex with tris(malonodialdehyde)

Direct and inverse spectral problems were solved. A three-ligand model was used to assign the bands in an IR spectrum of a molecular chromium complex with tris(malonodialdehyde), Cr(Mal)(3). In CCl4 solution, the alpha- and b eta -hydrogen atoms of the ligands in this complex were shown to be involve d in intermolecular interactions with solvent molecules. The symmetry of th e coordination entity of the complex in the solid state was found to be bel ow D-3