Reactivity of the europium hexafluoroacetylacetonate (hfac) complex, Eu(hfac)3(diglyme), and related analogs with potassium: formation of the fluoride hfac “ate” complexes, [LnF(hfac)3K(diglyme)]2
Reactivity of the europium hexafluoroacetylacetonate (hfac) complex, Eu(hfac)3(diglyme), and related analogs with potassium: formation of the fluoride hfac “ate” complexes, [LnF(hfac)3K(diglyme)]2
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DOI：
10.1039/b104095m
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发表时间：
2002-02
期刊：
影响因子：
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通讯作者：
W. Evans;Dimitri Giarikos;M. Johnston;M. A. Greci;J. Ziller
中科院分区：
文献类型：
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作者：
W. Evans;Dimitri Giarikos;M. Johnston;M. A. Greci;J. Ziller
合成了铕的六氟乙酰丙酮配合物Eu（hfac）3（二甘醇二甲醚），以检测其荧光和转化为Eu（II）类似物。Eu（hfac）3（二甘醇二甲醚）与钾的反应产生了意想不到的三价产物[EuF（hfac）3 K（二甘醇二甲醚）]2。通过合成其他Ln（hfac）3（二甘醇二甲醚）类似物并检查它们与钾的反应性来进一步研究该还原系统。Ln（hfac）3（二甘醇二甲醚）的Nd、Sm和Gd类似物也与钾反应形成[LnF（hfac）3 K（二甘醇二甲醚）]2，如对铕所观察到的。Eu（II）前体EuI 2（thf）4和{[Zr 2（OiPr）9]Eu（μ-I）}2与K（hfac）的反应也形成三价产物，即Eu（hfac）3（二甘醇二甲醚）和[Zr 2（OiPr）9]Eu（hfac）2。
The europium hexafluoroacetylacetonate complex Eu(hfac)3(diglyme) was synthesized to examine its fluorescence and conversion to a Eu(II) analog. Reaction of Eu(hfac)3(diglyme) with potassium produced the unexpected trivalent product [EuF(hfac)3K(diglyme)]2. This reduction system was studied further by synthesizing other Ln(hfac)3(diglyme) analogs and examining their reactivity with potassium. The Nd, Sm, and Gd analogs of Ln(hfac)3(diglyme) also react with potassium to form [LnF(hfac)3K(diglyme)]2 as observed for europium. Reactions of the Eu(II) precursors, EuI2(thf)4 and {[Zr2(OiPr)9]Eu(μ-I)}2 with K(hfac) also form trivalent products, namely Eu(hfac)3(diglyme) and [Zr2(OiPr)9]Eu(hfac)2.