摘要
本工作测定了吡啶(Py)的轴向配位对Co(Ⅱ)、Ni(Ⅱ)、Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)的原卟啉Ⅸ二甲酯(PP)配合物的紫外-可见(UV-VIS)光谱和共振拉曼(RR)光谱的影响,并基于轴向配体Py与金属离子和卟啉环之间的相互作用,对实验结果进行了解释.
The effect of the axial ligation of pyridine(Py) on the UV-VIS spectra and the resonance Raman(RR) spectra of Co(Ⅱ), Ni(Ⅱ),Cu(Ⅱ) Zn(Ⅱ) and Cd(Ⅱ) protoporphyrin Ⅸ dimethyl ester(PP) complexes are studied. The experimental results are elucidated based on the interactions among the axial ligand Py, central ion and the porphyrin ring: Py reacts, directly, or through the metal ions, with the porphyrin ring, effects the energy of the orbitals of the ring or the force constants of the ring skeletal bonds ,thus results in the wavelength shifts in the UV-VIS absorption bands and the frequency displacements in the RR structure-sensitive bands of the pyridinated complexes.
