Group 3 and Lanthanide Boryl Compounds: Syntheses, Structures, and Bonding Analyses of Sc鈭払, Y鈭払, and Lu鈭払 蟽-Coordinated NHC Analogues
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- 作者：Liban M. A. Saleh ; Krishna Hassomal Birjkumar ; Andrey V. Protchenko ; Andrew D. Schwarz ; Simon Aldridge ; Cameron Jones ; Nikolas Kaltsoyannis ; Philip Mountford
- 刊名：Journal of the American Chemical Society
- 出版年：2011
- 出版时间：March 23, 2011
- 年：2011
- 卷：133
- 期：11
- 页码：3836-3839
- 全文大小：751K
- 年卷期：v.133,no.11(March 23, 2011)
- ISSN：1520-5126
文摘
Reaction of [Ln(CH2SiMe3)2(THF)n][BPh4] (Ln = Sc, Y, Lu ; n = 3, 4) with Li{B(NArCH)2}(THF)2 (Ar = 2,6-C6H3iPr2) formed the first group 3 and lanthanide boryl compounds, Sc{B(NArCH)2}(CH2SiMe3)2(THF) and Ln{B(NArCH)2}(CH2SiMe3)2(THF)2 (Ln = Y, Lu), which contain two-center, two-electron Ln鈭払 蟽 bonds. All of these systems were crystallographically characterized. Density functional theory analysis of the Ln鈭払 bonding found it to be predominantly ionic, with covalent character in the 蟽-bonding Ln鈭払 HOMO.