Chemistry and Physics Faculty Articles

Title

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

Document Type

Article

Publication Date

2001

Publication Title

Journal of the Chemical Society, Dalton Transactions

ISSN

1477-9226

Volume

2002

Issue/No.

4

First Page

520

Last Page

526

Peer Reviewed

1

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.

DOI

10.1039/B104095M

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