Facile Preparation of a Scandium Terminal Imido Complex Supported by a Phosphazene Ligand

doi:10.1021/om400803q

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	Facile Preparation of a Scandium Terminal Imido Complex Supported by a Phosphazene Ligand
	Rong, Weifeng 1,2; Cheng, Jianhua 1; Mou, Zehuai 1,2; Xie, Hongyan 1,2; Cui, Dongmei 1
刊名	ORGANOMETALLICS
	2013-10-14
卷号	32 期号:19 页码:5523-5529
ISSN号	0276-7333
DOI	10.1021/om400803q
英文摘要	The scandium bis(alkyl) complex bearing the phosphazene ligand (LSc)-Sc-1(CH2SiMe3)(2) (1) (L-1 = N(PPh2=NPh)(2)) reacted with an equimolar amount of 2,6-diisopropylaniline to afford the corresponding mixed alkyl/anilido complex (LSc)-Sc-1[NHC6H3(Pr-i)(2)](CH2SiMe3) (2). Under mild conditions (20 degrees C, 4 h or 0 degrees C, 12 h), complex 2 could be swiftly transformed to the terminal imido complex (LSc)-Sc-1=N[C6H3(Pr-i)(2)](DMAP)(2) (4) in the presence of DMAP (DMAP = 4-N,N-dimethylaminopyridine). Correspondingly, treatment of the yttrium and lutetium bis(alkyl) complexes L(2)Ln(CH2SiMe3)(2) (L-2 = N [Ph2PNC6H3(Pr-i)(2)](2); Ln = Y (7), Lu (8)) with equimolar amounts of 2,6-diisopropylaniline gave the mixed alkyl/anilido complexes L(2)Ln[NHC6H3(Pr-i)(2)](CH2SiMe3) (Ln = Y (9), Lu (10)), which, however, underwent dealkylation of the Ln CH2SiMe3 species at temperatures of 60 degrees C for 9 and 100 degrees C for 10 to afford bis(anilido) complexes L(2)Ln[NHC6H3(Pr-i)(2)](2) (Ln = Y (11), Lu (12)) as redistribution products. All these complexes have been characterized by H-1, C-13{H-1}, and P-31{H-1} NMR spectroscopy and X-ray diffraction analyses, and clear structural insight into the behavior of an imido functionality on a lanthanide metal center was provided.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000326122600038
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46483]
专题	中国科学院化学研究所
通讯作者	Cui, Dongmei
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Rong, Weifeng,Cheng, Jianhua,Mou, Zehuai,et al. Facile Preparation of a Scandium Terminal Imido Complex Supported by a Phosphazene Ligand[J]. ORGANOMETALLICS,2013,32(19):5523-5529.
APA	Rong, Weifeng,Cheng, Jianhua,Mou, Zehuai,Xie, Hongyan,&Cui, Dongmei.(2013).Facile Preparation of a Scandium Terminal Imido Complex Supported by a Phosphazene Ligand.ORGANOMETALLICS,32(19),5523-5529.
MLA	Rong, Weifeng,et al."Facile Preparation of a Scandium Terminal Imido Complex Supported by a Phosphazene Ligand".ORGANOMETALLICS 32.19(2013):5523-5529.