APPLICATIONS OF DSCPCF MODEL IN RARE EARTH COMPLEXES (Ⅳ)——ANALYSIS OF ABSORPTION SPECTRA FOR Pr~(3+)

• 作 者: 杨频 王越奎
• 机 构: Institute of Molecular Science, Shanxi University, Taiyuanrrrrrrrrn,Institute of Molecular
• 出 处: Science in China,Ser.B
• 发表日期: 1987年08期
• 关键词: symmetry bands perturbation complexes formulas assigned AND Tm approximate figur

The new complexes, RE(TTA)_4·HP(RE are Pr~(3+) and Tm~(3+)), have been prepared, and their UV-VIS-NIR absorption spectra measured. All the matrix element formulas of f~2 and f~(12) configurations in D_4 symmetry field have been derived with the Double Sphere Coordination Point Charge Field Model, and the influence of the symmetry change of the complex unit, REO_3, on the forbital levels of Pr~(3+) is discussed. And based on the theoretical calculations, the transition peaks in the absorption bands are assigned.

The new complexes, RE (TTA) _4 · HP (RE are Pr ~ (3+) and Tm ~ (3+)), have been prepared, and their UV- VIS- NIR absorption spectra measured. All the matrix element formulas of f ~ 2 and f ~ (12) configurations in D_4 symmetry field have been derived with the Double Sphere Coordination Point Charge Field Model, and the influence of the symmetry change of the complex unit, REO_3, on the forbital levels of Pr ~ (3) And based on the theoretical calculations, the transition peaks in the absorption bands are assigned.