High-Spin Iron(II) Alkynyl Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Characterization, and Reactivity Study
作者:Xiaojie Wang、Jia Zhang、Lei Wang、Liang Deng
DOI:10.1021/acs.organomet.5b00028
日期:2015.6.22
High-spin iron(II) alkynyl complexes [(IPr2Me2)2Fe(C≡CBut)2] (1) and [(IPr2Me2)2Fe(C≡CR)(NHMes)] (R = But 2, SiMe3 3) bearing a monodentate N-heterocyclic carbene ligand IPr2Me2 (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) have been prepared by salt metathesis and/or amine elimination methods and characterized by various spectroscopic methods. Complex 1 reacts with PMe3 (4 equiv) and ButNC (4 equiv)
高自旋铁(II)炔基配合物[(IPR 2我2)2的Fe(C≡CBu吨)2 ](1)和[(IPR 2我2)2的Fe(C≡CR)(NHMes)](R卜=吨 2,森达3 3)承载的单齿N-杂环卡宾配体的IPr 2我2(1,3-二异丙基-4,5-二甲基咪唑烷-2-亚基)已经制备通过盐复分解和/或胺排除方法并以各种光谱学方法为特征。配合物1与PMe 3(4当量)和Bu t反应NC(4当量),以形成反式- [(PME 3)4的Fe(C≡CBu吨)2 ](4)和[η 3 - (卜吨C≡C)(BU吨)CC(IPR 2我2)C(NBu t)} Fe(NCBu t)3 ](5)。相反,1与4-Pr i -C 6 H 4 NCO和Pr i NCNPr i的反应导致两性离子盐4-Pr i -C 6 H的形成分别为4 NC(O)(IPr 2 Me 2)和(Pr i N)2 C(IPr 2 Me 2)。的相互作用1与I