关键词: 配位场理论, C_2v对称场, 稀土配合物, EuP₅O₁₄

Abstract: By using the Double-Sphere Coordination Point-Charge Field (DSCPCF) model and the irreducible tensor operator method, thirty-five crystal field levels of the multiplets ⁷FJ (J=1～5) in EuP₅O₁₄are calculated and assigned according to the C_2v site symmetry and to the subgroup chain relation of R(3)The calculated crystal field splitting energies are in quite good agreement with experimental data.The results of the DSCPCF model are remarkably superior to that of the simple static coordination point charge field (PCF)model etc.

Key words: Coordination field theory, C_2vsite symmetry, Rare earth complex, EuP₅O₁₄