Double α,α CH bond insertion into sp<sup>3</sup> CH<sub>2</sub> moiety: synthesis of a Fe carbene bis-hydride dinitrogen complex
作者:Julien Petit、Anthony Cavaillé、Nathalie Saffon-Merceron、Marie Fustier-Boutignon、Nicolas Mézailles
DOI:10.1039/d1dt00610j
日期:——
formation of two isomeric low spin diamagnetic complexes 3trans and 3cis [Fe(κ3-P,C,P′-PCPCy)(H)2(N2)]. Cristallization allowed isolation of complex 3d [Fe(κ3-P,C,P′-PCPCy)(H)2]2(μ-N2), characterized by X-ray diffraction, Mössbauer and Raman spectroscopies. DFT calculations rationalized the facile double α,α CH bond insertion into a single sp3 CH2 moiety, as well as the fast exchange positions of the
高自旋顺磁性配合物 [(κ 2 - P, P '-PCH 2 P Cy )FeCl 2 ] 2在 N 2下被两个电子还原导致形成两个异构的低自旋反磁性配合物3 trans和3 cis [Fe( κ 3 - P,C,P '-PCP Cy )(H) 2 (N 2 )]。结晶允许分离复合物3d [Fe(κ 3 - P,C,P '-PCP Cy )(H) 2 ] 2 (μ-N2 ),通过 X 射线衍射、穆斯堡尔和拉曼光谱表征。DFT 计算合理化了容易的双 α,α CH 键插入单个 sp 3 CH 2部分,以及NMR 光谱观察到的顺式二氢化物复合物中氢化物的快速交换位置。