Group 3 and lanthanide boryl compounds: syntheses, structures, and bonding analyses of Sc-B, Y-B, and Lu-B sigma-coordinated NHC analogues

Liban Saleh, Krishna Birjkumar, Andrey Protchenko, Andrew Schwarz, Simon Aldridge, Cameron Jones, Nikolas Kaltsoyannis, Philip Mountford

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Abstract

Reaction of [Ln(CH(2)SiMe(3))(2)(THP)(n)][BPh(4)] (Ln = Sc,y, Lu; n = 3,4) with Li B(NArCH)(2) (THF)(2) (Ar = 2,6-C(6)H(3)(i)Pr(2)) formed the first group 3 and lanthanide boryl compounds, Sc B(NArCH)(2) (CH(2)SiMe(3))(2)(THF) and Ln- B(NArCH)(2) (CH(2)SiMe(3))(2)(THF)(2) (Ln = Y, Lu), which contain two-center, two-electron Ln-B sigma bonds. All of these systems were crystallographically characterized. Density functional theory analysis of the Ln-B bonding found it to be predominantly ionic, with covalent character in the a-bonding Ln-B HOMO.
Original languageEnglish
Pages (from-to)3836 - 3839
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number11
DOIs
Publication statusPublished - 2011

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