title: Normal-to-abnormal rearrangement and NHC activation in three-coordinate iron(II) carbene complexes.
abstract: The 'normal' three-coordinate iron-NHC complex [(IPr)Fe(N'')2] (N″ = N(SiMe3)2) rearranges to its abnormal NHC analogue [(aIPr)Fe(N″)2] (6) on heating, providing a rare abnormal iron-aNHC complex, and the first such three-coordinate complex. The tert-butyl-substituted complex [(I(t)Bu)Fe(N″)2] (4) undergoes a thermal decomposition that has not previously been observed in iron-NHC chemistry, resulting in the bis(imidazole) complex [((t)BuIm)2Fe(N″)2] (7). A mechanism that involves consecutive C-H and C-N activation is proposed to account for the formation of 7.
authors: School of Chemistry, The University of Manchester , Manchester, M13 9PL, U.K.
authors: Benjamin M
authors: BM
authors: Day
authors: Thomas
authors: T
authors: Pugh
authors: Daniël
authors: D
authors: Hendriks
authors: Célia Fonseca
authors: CF
authors: Guerra
authors: David J
authors: DJ
authors: Evans
authors: F Matthias
authors: FM
authors: Bickelhaupt
authors: Richard A
authors: RA
authors: Layfield