Tb(Ⅳ)和1-苯基-3-甲基-4-苯甲酰基-吡唑酮-5的固态络合物

STUDY ON THE SOLID COMPLEX OF 1-phenyl-3-methyl-4-benzoyl-5-phrazolone AND TERBIUM(Ⅳ)

以碱式碳酸铽[Tb(Ⅳ)(OH)_2CO_3]为原料,在醋酸—醋酸钠缓冲溶液中合成了1-苯基-3-甲基-4-苯甲酰基-吡唑酮-5与Tb(Ⅳ)的固态络合物(Tb(Ⅳ)PMBP],经元素分析、溶解度、XRD、UV、IR和TG-DTA等方法研究证实,Tb(Ⅳ)PMBP络合物的组成是:Tb(Ⅳ)(CH_3COO)_2(PMBP)_2,它不溶于水而溶于某些有机溶剂,例如苯、氯仿、丙酮、冰醋酸和无水乙醇等。在Tb(Ⅳ)PMBP的络合物中,HPMBP以烯醇式和Tb(Ⅳ)键合和配位。

Complex of terbium(Ⅳ) and 1-phenyl-3-methyl-4-benzoyl-5-phrazolone(PMBP) was prepared in solid state by means of substitution reaction in buffer solu tion of CH_3COONa-CH_3COOH and studied by elemental analysis, XRD, UV and IR as well as TG-DTA. The composition of the PMBP complex of terbium(Ⅳ)was found to be Tb(Ⅳ)(CH_3COO)_2(PMBP)_2 and PMBP coordinated to terbium(Ⅳ) in enol form.