f区元素-羟基吡啶酮体系的配合物研究——Ⅱ.钆(Ⅲ)、钍(Ⅳ)-羟基吡啶酮配合物的合成和性质研究
COMPLEXES STUDY OF f BLOCK ELEMENTS-HYDROXYPYRIDINONE SYSTEMS Ⅱ.SYNTHESIS AND CHARACTERIZATION OF Gd(Ⅲ), Th(Ⅳ) COMPLEXES OF HYDROXY-PYRIDINONE SYSTEMS
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摘要: 本文在等摩尔的钆(Ⅲ)或钍(Ⅳ)和羟基吡啶酮(1-羟基-2-吡啶酮(1,2-HOPO)和3-羟基-2-吡啶酮(3,2-HOPO))的体系中,及在高pH条件下,合成了Th(1,2-OPO)(OH)_3·6H_2O,Th(3,2-OPO)(OH)_3·6H_2O,Gd(1,2-OPO)(OH)_2·3H_2O和Gd(3,2-OPO)(OH)_2·4H_2O等四种固体配合物。采用重量法,碳、氢、氮元素组份分析法和EDTA络合滴定等分析方法测定了配合物的组成。用溴化钾、碘化铯压片法研究了固体配合物的红外光谱性质。对固体配合物的溶解性和溶解液的紫外光谱作了研究。Abstract: This paper reports that the Gd(Ⅲ) and Th(Ⅳ)complexes of 1-hydroxy-2 (1H)pyridinone(1,2-HOPO) and 3-hydroxy-2(1H)-pyridinone (3,2-HOPO), Gd (OPO)(OH)2·3-4H2O,Th(OPO)(OH)3·6H2O have been prepared when the ratio of hydroxypyridinone to Gd(Ⅲ) or Th(Ⅲ) is one at pH = 9. The complexes are identified by chemical analyses .These complexes are insoluble in quitea few organic solvents---methyl alcohol, ethyl alcohol, acetone, benzene andso on. The infrared and ultraviolet absorption spectra of these complexes are studied.These results are to be used in the design and refinement of actinide specific macro-chelate sequestering agents.
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