Three- and Four-Coordinate Homoleptic Iron(I)-NHC Complexes: Synthesis   and Characterization

doi:10.1021/acs.organomet.6b00047

CORC > 北京大学 > 化学与分子工程学院

	Three- and Four-Coordinate Homoleptic Iron(I)-NHC Complexes: Synthesis and Characterization
	Ouyang, Zhenwu ; Meng, Yinshan ; Cheng, Jun ; Xiao, Jie ; Gao, Song ; Deng, Liang
刊名	ORGANOMETALLICS
	2016
关键词	HETEROCYCLIC CARBENE LIGATION LOW-COORDINATE IRON ELECTRONIC-STRUCTURE AMIDO COMPLEXES METAL-COMPLEXES LINEAR IRON(I) REACTIVITY LIGANDS BOND REDUCTION
DOI	10.1021/acs.organomet.6b00047
英文摘要	The use of the monodentate N-heterocyclic carbene (NHC) 1,3,4,5-tetramethylimidazol-2-ylidene (IMe2Me2) and its N,N-diethyl and N,N-diisopropyl analogues IEt2Me2 and IPr2Me2 enabled the preparation of the four-coordinate homoleptic iron(I)-NHC complexes [(NHC)(4)Fe][BPh4] (NHC = IMe2Me2, 1; IEt2Me2, 2; IPr2Me2, 3) and the first three-coordinate homoleptic iron(I)-NHC complex, [(IPr2Me2)(3)Fe][BPh4] (5). X-ray crystallographic studies revealed the tetrahedral coordination geometries of the cations in 1 and 2, the square-planar geometry in 3, and the trigonal-planar geometry in 5. Fe-57 Mossbauer spectroscopy and magnetic susceptibility measurements suggested that 1, 2, and 5 are high-spin (S = 3/2) iron(I) species and that 3 is a low-spin (S = 1/2) complex. H-1 NMR and UV-vis-NIR spectroscopies revealed the existence of tetrahedral square-planar isomerization (for 2 and 3) and NHC dissociation (for 3) in solutions of 2 and 3.; National Natural Science Foundation of China [21421091, 21432001]; SCI(E); EI; ARTICLE; deng@sioc.ac.cn; 10; 1361-1367; 35
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437237]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ouyang, Zhenwu,Meng, Yinshan,Cheng, Jun,et al. Three- and Four-Coordinate Homoleptic Iron(I)-NHC Complexes: Synthesis and Characterization[J]. ORGANOMETALLICS,2016.
APA	Ouyang, Zhenwu,Meng, Yinshan,Cheng, Jun,Xiao, Jie,Gao, Song,&Deng, Liang.(2016).Three- and Four-Coordinate Homoleptic Iron(I)-NHC Complexes: Synthesis and Characterization.ORGANOMETALLICS.
MLA	Ouyang, Zhenwu,et al."Three- and Four-Coordinate Homoleptic Iron(I)-NHC Complexes: Synthesis and Characterization".ORGANOMETALLICS (2016).