Yttrium Complexes of Arsine,Arsenide, and Arsinidene Ligands |
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| Authors: | Dr Thomas Pugh Dr Andrew Kerridge Dr Richard A Layfield |
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| Institution: | 1. School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL (UK);2. Department of Chemistry, Lancaster University, Lancaster, LA1 4YB (UK) |
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| Abstract: | Deprotonation of the yttrium–arsine complex Cp′3Y{As(H)2Mes}] ( 1 ) (Cp′=η5‐C5H4Me, Mes=mesityl) by nBuLi produces the μ‐arsenide complex {Cp′2Yμ‐As(H)Mes]}3] ( 2 ). Deprotonation of the As? H bonds in 2 by nBuLi produces Li(thf)4]2{Cp′2Y(μ3‐AsMes)}3Li], Li(thf)4]2 3 ], in which the dianion 3 contains the first example of an arsinidene ligand in rare‐earth metal chemistry. The molecular structures of the arsine, arsenide, and arsinidene complexes are described, and the yttrium–arsenic bonding is analyzed by density functional theory. |
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| Keywords: | arsenic arsinidene ligands lithium rare‐earth elements yttrium |
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