镧系乙酰丙酮-α、β、γ、δ-四苯基卟啉络合物的红外和拉曼光谱

高等学校化学学报 ›› 1984, Vol. 5 ›› Issue (5): 713.

镧系乙酰丙酮-α、β、γ、δ-四苯基卟啉络合物的红外和拉曼光谱

刘国发, 张元福, 赵永年, 王桂馥, 王宇天

吉林大学理论化学研究所

收稿日期:1983-03-02 出版日期:1984-10-24 发布日期:1984-10-24

Infrared and Raman Spectra of Lanthanide Acetylacetonate-α,β,γ,δ-Tetraphenyl-porphrin Complexes

Liu Guofa, Zhang Yuanfu, Zhao Yongnian, Wang Guifu, Wang Yutian

Institute of Theoretical Chemistry, Jilin University, Changchun

Received:1983-03-02 Online:1984-10-24 Published:1984-10-24

摘要/Abstract

摘要： 本文从测定11个稀土乙酰丙酮-α、β、γ、δ-四苯基卟啉络合物的红外和拉曼光谱中发现,由于四苯基卟啉与稀土离子络合,削弱了乙酰丙酮环上的M—O拉伸振动带,使此带向低波数位移,而且仍符合镧系的“四分组”和“斜W”效应,吡咯C—H摇摆振动～984cm^-1带亦基本符合此效应,络合物中PN—H拉伸振动带消失,出现M—N拉伸振动与卟啉环骨架振动等的复合振动带,因而上述的镧系变化规律消失.

Abstract: The infrared and Raman spectra of 11 lanthanide acetylacetonate -a, β, γ, δ- tetraphenylporphyrin complexes LnTPPacac (Ln. lanthanide elements, TPP. tetraphenylporphyrin, acac: acetylacetone)in the region 200-4000cm^-1 and 100-4000cm^-1 have been measured respectively.Because of the coordinate bonding between the rare earth ion and nitrogen in TPPforms, the band near 400cm^-1, M-Ostretching vibration on the acetylacetonate ring, becomes weaker, this band is shifted to the lower wavenumber, and it is sensitive to a change in rare earth ion and its frequency changes periodically with the atomic number and total angular quantum numbers of the rare ion, showing the "tetra effect" and "inclined Weffect" characteristic of lanthanides.The band near 984cm^-1, the C-H rocking vibration in pyrrole also shows mentioned above laws.The band 3317cm^-1, N-Hstretching vibration, disappears upon complex formation, the vibration coupling between the M-Nstretching and the ring deformation appears.

TrendMD:

刘国发, 张元福, 赵永年, 王桂馥, 王宇天. 镧系乙酰丙酮-α、β、γ、δ-四苯基卟啉络合物的红外和拉曼光谱. 高等学校化学学报, 1984, 5(5): 713.

Liu Guofa, Zhang Yuanfu, Zhao Yongnian, Wang Guifu, Wang Yutian . Infrared and Raman Spectra of Lanthanide Acetylacetonate-α,β,γ,δ-Tetraphenyl-porphrin Complexes. Chem. J. Chinese Universities, 1984, 5(5): 713.