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自从Jensen于1959年合成了一系列1-苯基-3-甲基-4-酰基吡唑啉酮-5以后,作为一类重要的萃取剂和位移试剂,它们已被广泛地研究和应用。我们曾合成了一系列在4-位上为卤代乙酰基的吡唑啉酮,并就它对稀土元素的萃取性能进行了研究。这类萃取剂与中性萃取剂一起具有一定的协萃性能。作为系统研究的一部分,我们合成了稀土系列的1-苯基-3-甲基-4-三氟乙酰基吡唑啉酮-5(HPMTFP)和三苯基氧化膦(Ph_3PO)的协萃络合物RE(PMTFP)_3·(Ph_3PO)_2(RE=La—Lu及Y,除Pm外),并对其中Nd(PMTFP)_3(Ph_3PO)_2的红外光谱及单晶结构进行分析研究。
Since Jensen synthesized a series of 1-phenyl-3-methyl-4-acylpyrazolone-5 in 1959, they have been widely studied and applied as a kind of important extractant and shift reagent. We have synthesized a series of pyrazolones, which are haloacetyl groups at the 4-position, and studied their extraction properties of rare earth elements. Such extractants together with the neutral extractant have some synergistic properties. As part of a systematic study, we synthesized a rare earth series of 1-phenyl-3-methyl-4-trifluoroacetylpyrazolone-5 (HPMTFP) and triphenylphosphine oxide (Ph_3PO) (PMTFP) _3 · (Ph_3PO) _2 (RE = La-Lu and Y, with the exception of Pm). The infrared spectra and single crystal structure of Nd (PMTFP) _3 (Ph_3PO) _2 were also studied.