Issue 4, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

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

William J. Evans,*a   Dimitrios G. Giarikos,a   Matthew A. Johnston,a   Michael A. Grecia  and  Joseph W. Zillera  

* Corresponding authors

a Department of Chemistry, University of California, Irvine, California 92697-2025, USA

Abstract

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.

Graphical abstract: 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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Article information

DOI
https://doi.org/10.1039/B104095M
Article type
Paper
Submitted
09 May 2001
Accepted
06 Nov 2001
First published
16 Jan 2002

J. Chem. Soc., Dalton Trans., 2002, 520-526

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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

W. J. Evans, D. G. Giarikos, M. A. Johnston, M. A. Greci and J. W. Ziller, J. Chem. Soc., Dalton Trans., 2002, 520 DOI: 10.1039/B104095M

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