Photoacoustic Spectra Studies on Pd-Amino Acid Complexes, Pd（L-his）Cl₂∙2H₂O and Pd（Gly）₂∙2H₂O

In this work, thc crystals of Pd（L-his）Cl₂∙H₂O and Pd（Gly）₂∙2H₂O complexes are synthesized. And the room temperature photoacoustic spectra of these complexes are determined and explained in the region of 280-780nm. The characterizations of structural chemistry of these two complexes arc discussed. Then, thc energy levels life and the excitation electron nonradiativc relaxation channel of Pd（Ⅱ） ion in complex system are studied by the photoacoustic phase spectra of complexes. The energy levels life of Pd（Ⅱ） ion in D_4h group are calculated, the energy levels life will be different for the different coordinated ligands.