3Cu(IO3)2·2H2O晶体的电子结构研究

本文测定了3Cu(IO₃)₂·2H₂O球晶的电子吸收光谱,吸收峰位于9140cm^-1和15250cm^-1。首次观察到了高达6110cm^-1的低对称晶场分裂。吸收曲线经Gauss分解可得到八个Gauss型吸收峰,分别位于8590,10690,10870,12190,13500,14510,15330和16500cm^-1。测量其EPR谱可得g=2.141±0 关键词：

ELECTRONIC STRUCTURE STUDY OF 3Cu(IO3)2·H2O CRYSTAL

The electronic absorption spectrum of the spherocrystal of bellingerite 3Cu(IO₃)₂·2H₂O, was measured, two strong absorption bands appeared at 9140 cm^-1 and 15250 cm^-1. The low-symmetric crystal field splitting, which is as great as 6110cm^-1, was observed for the first time. Resolving the absorption curve, we obtained 8 Gauss-type absorption peaks at 8590, 10690, 10870, 12190, 13500, 14510, 15330 and 16500 cm^-1, respectively. By analyzing its EPR spectrum, we got g=2.141±0.004. The experimental results were discussed quantitatively using the ligand field theory and the radial wave function, of nonfree copper(II). The calculated values were in agreement with the experimental results. Thus the electronic structure of bellingerite crystal was interpreted comprehensively.