Extended analysis of fine-structure energy levels of 4s~24p~3 and 4s4p~4 for ions from PdXIV to Cd XVI
In this paper, fine-structure energy levels of configurations 4s~24p~3 and 4s4p~4 for Arsenic isoelectronic sequence ions from KrⅣto CdⅩⅥ are analysed by multi-configuration Hartree-Fock plus exchange-statistical-potential with relativistic corrections(HXR) method in Cowan'code. By analyzing variation of differences between the experimental data and the associated theoretical energies with Z_c along the sequence, a new formula has been found for fit calculation. With this new formula, the fine-structure levels of the configurations mentioned above are predicted, the uncentainty of most predicted energy level values with the associated experimental results are not more than 100 cm~(-1). The wavelengths, oscillator strengths and probabilities of transitions 4s~24p~3—4s4p~4 calculated with HXR method are given here too. The predicted wavelengths of transition 4s~24p~3—4s4p~4 for PdⅩⅣ are in well agreement with the experimental ones within 0.005 nm except that of transition 4s~24p~3 ~2D_(5/2)—4s4p~4 ~2D_(5/2) which is 0 018 nm, and the other results of transitions 4s~24p~3—4s4p~4 for ions from PdⅩⅣ to CdⅩⅥ are sheer predicted ones.