THE ELECTRONIC SPECTRA AND STRUCTURE OF THE Pd[II] AND Pt[II] SQUARE PLANAR TETRAHALOGEN COMPLEXES

Partial support has been provided by the National Institutes of Health and the National Science Foundation. Present address of Nozomu Takeuchi: Faculty of Engineering, Tokushima University, Tokushima, Japan.Author Institution: Department of Chemistry, New Mexico State University; Faculty of Engineering, Takushima UniversityThe polarized single-crystal reflection spectra of $K_{2}PtBr_{4}$ and $K_{2}PdBr_{4}$ have been determined. These spectra and the absorption spectra obtained through their Kramers-Kronig analysis will be presented. The polarization of the ``single-molecule' transitions will be deduced from these results and comparison made to findings obtained in a similar investigation of the corresponding tetrachloro complexs. The transitions observed in these studies and their polarization will be discussed in terms of current theories of the electronic structure of planar complexes and their relationship to previously-reported studies on such complexes [J. Chem. Phys. 46, 1090 [1967] and J. Am. Chem. Soc., 89, 6114 [1967]] will be brought out