Yttrium Complexes of Arsine, Arsenide, and Arsinidene Ligands1. (5th February 2015)

• Record Type: Journal Article
• Authors: Pugh, Thomas; Kerridge, Andrew; Layfield, Richard A.
• Is Part Of: Angewandte Chemie. Volume 127:Number 14(2015)
• Page Start: 4329
• Page End: 4332
• Publication Date: 2015-02-05
• Subjects: Arsen -- Arsinidenliganden -- Lithium -- Seltenerdmetalle -- Yttrium; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201500173
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Deprotonation of the yttrium–arsine complex [Cp′3 Y{As(H)2 Mes}] (1 ) (Cp′=η 5 ‐C5 H4 Me, Mes=mesityl) by n BuLi produces the μ‐arsenide complex [{Cp′2 Y[μ‐As(H)Mes]}3 ] (2 ). Deprotonation of the AsH bonds in2 by n BuLi produces [Li(thf)4 ]2 [{Cp′2 Y(μ3 ‐AsMes)}3 Li], [Li(thf)4 ]2 [3 ], in which the dianion3 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.