Am~(3+)与二(2,4,4,-三甲基戊基)二硫代膦酸配合物的f-f吸收光谱研究

摘要: 制备了锕系离子Ａｍ３＋与二（２，４，４，－三甲基戊基）二硫代膦酸（ＨＢＴＭＰＤＴＰ）的配合物溶液，测得了配合物的ｆ－ｆ吸收光谱。对Ａｍ３＋－ＨＢＴＭＰＤＴＰ４种对称结构配合物的吸收光谱进行了计算，通过对实验谱和计算谱的比较进行了谱图解析和指认。结果表明，Ａｍ３＋－ＨＢＴＭＰＤＴＰ配合物的最大可能的构型是八配位立方体。还对ＨＢＴＭＰＤＴＰ萃取镅的行为进行了讨论。

Abstract: STUDY ON ff ABSORPTION SPECTRA OF Am3＋BIS(2，4，4TRIMETHYLPENTYL) DITHIOPHOSPHINIC ACID COMPLEXChen Yingzhong Xu Jingming Chen Jing Zhu Yongjun(Institute of Nuclear Enerey Technology,Tsinghua University,Beijing 102201)ABSTRACTThe complex solution of Am3＋ with HBTMPDTP (bis(2,4,4trimethylpentyl) dithiophosphinic acid)is prepared.The ff absorption spectra of Am3＋HBTMPDTP complex is determined.By comparing the experimental results with calculated spectra according to 4 possible complex structure models,assignment to the structure of Am3＋HBTMPDTP in solution is given.The most possible structure of Am3＋HBTMPDTP complex is cubic with 8 ligands.Key words Bis(2,4,4trimethylpentyl) dithiophosphinic acid (HBTMPDTP) Americium Structure of complex Calculation of absorption spectra