Studies on hypersensitive transitions of Nd(Ⅲ)in Nd(Ⅲ)-β-diketone-neutral ligand ternary compounds  

作　　者：GAO, Jin-Zhang YANG,Wei-Dong YANG,Wu KANG,Jing-Wan BAI,Guang-Bi Institute of Chemistry,Northwest Normal University,Lanzhou 730070YU,Geng-Sun Department of Physics,Northwest Normal University,Lanzhou 730070 

出　　处：《Chinese Journal of Chemistry》1993年第4期289-298,共8页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：In this paper,hypersensitive transitions of Nd(Ⅲ)in Nd(Ⅲ)-β-diketone-neutral ligand ternary coordination compounds(where β-diketone=acetylacetone(AA),benzoylace- tone(BA),dibenzoylmethane(DBM),2-thenoyl trifluoroacetone(TTA);neutral ligand=pyri- dine(Py),α,α'-dipyridyl(Dipy),phenanthroline(Phen)are studied and their intensities are given through dynamic coupling model.The results are in agreement with those observed and caleulated using Judd-Ofelt equation.It may be seen that the dynamic coupling mechanism provides major contribution to the intensity of hypersensitive transition.On the other hand,in order to get the intensity of ~4I_(9/2)→~4G_(5/2) transition,the absorption spectra in 560—610 nm have been decomposed into threo peaks by nonlinear fitting with Lorentzian and Gaussian funetion and the“pure”intensities of hypersensitive transitions have been obtained, which are agreeable to those computed by Judd-Ofelt method and dynamic coupling model.In this paper,hypersensitive transitions of Nd(Ⅲ)in Nd(Ⅲ)-β-diketone-neutral ligand ternary coordination compounds(where β-diketone=acetylacetone(AA),benzoylace- tone(BA),dibenzoylmethane(DBM),2-thenoyl trifluoroacetone(TTA);neutral ligand=pyri- dine(Py),α,α'-dipyridyl(Dipy),phenanthroline(Phen)are studied and their intensities are given through dynamic coupling model.The results are in agreement with those observed and caleulated using Judd-Ofelt equation.It may be seen that the dynamic coupling mechanism provides major contribution to the intensity of hypersensitive transition.On the other hand,in order to get the intensity of ~4I_(9/2)→~4G_(5/2) transition,the absorption spectra in 560—610 nm have been decomposed into threo peaks by nonlinear fitting with Lorentzian and Gaussian funetion and the“pure”intensities of hypersensitive transitions have been obtained, which are agreeable to those computed by Judd-Ofelt method and dynamic coupling model.

关 键 词：Studies on hypersensitive transitions of Nd in Nd 

分 类 号：O6[理学—化学]