Reinvestigation of Reactions of HgPh<inf>2</inf> with Eu and Yb Metal and the Synthesis of a Europium(II) Bis(tetraphenylborate) †

Wiecko, Michal, Guo, Zhifang, Deacon, Glen B., and Junk, Peter C. (2022) Reinvestigation of Reactions of HgPh<inf>2</inf> with Eu and Yb Metal and the Synthesis of a Europium(II) Bis(tetraphenylborate) †. Molecules, 27 (21). 7547.

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Abstract

Europium bis(tetraphenylborate) [Eu(thf)7][BPh4]2⋅thf containing a fully solvated [Eu(thf)7]2+ cation, was synthesized by protolysis of “EuPh2” (from Eu and HgPh2) with Et3NHBPh4, and the structure was determined by single-crystal X-ray diffraction. Efforts to characterize the putative “Ph2Ln” (Ln = Eu, Yb) reagents led to the synthesis of a mixed-valence complex, [(thf)3YbII(μ-Ph)3YbIII(Ph)2(thf)]⋅2thf, resulting from the reaction of Yb metal with HgPh2 at a low temperature. This mixed-valence YbII/YbIII compound was studied by 171Yb-NMR spectroscopy and single-crystal X-ray diffraction, and the oxidation states of the Yb atoms were assigned.

Item ID: 77612
Item Type: Article (Research - C1)
ISSN: 1420-3049
Keywords: europium, lanthanoid organyls, mercury organyls, tetraphenylborate anion, ytterbium
Copyright Information: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Funders: Australian Research Council (ARC)
Projects and Grants: ARC funding (DP190100798)
Date Deposited: 21 Feb 2023 21:51
FoR Codes: 34 CHEMICAL SCIENCES > 3402 Inorganic chemistry > 340203 F-block chemistry @ 100%
SEO Codes: 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences @ 100%
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