Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex

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	Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex
	Zhang Shufeng 1; Qian Qingli 2; Guo Cunyue 2; Yuan Guoqing 2
刊名	ACTA CHIMICA SINICA
	2009-01-14
卷号	67 期号:1 页码:59-64
关键词	Rhodium Complex Methanol Carbonylation Reaction Mechanism Active Species
ISSN号	0567-7351
英文摘要	The mechanism of methanol carbonylation catalyzed by a chelated square planar carbonyl rhodium complex was studied. The chelated square planar cationic complex was formed via the coordination of [Rh(CO)(2)Cl](2) with the ligand, which has two donors with different coordination capacity. Experimental results showed that the active species of the catalyst in methanol carbonylation differed from [Rh(CO)(2)I(2)](-) reported in other literature. Other than conventional concept, the N -> Rh bond, formed by rhodium in the complex and nitrogen at pyridine ring in the ligand, did not break in the course of the carbonylation reaction, but formed into new active species instead, i.e., the ligand and rhodium as a whole participated in the oxidative addition of CH(3)I and the formation of CH(3)COI Via the investigation of the corresponding catalyst with polymer ligand, the mechanism was further demonstrated. The result is of significance towards the molecular design of such catalysts, and the solution to their deactivation due to precipitation in industrial application as well.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000263641400010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/67993]
专题	中国科学院化学研究所
通讯作者	Zhang Shufeng
作者单位	1.Tianjin Normal Univ, Coll Chem & Life Sci, Tianjin 300387, Peoples R China 2.Chinese Acad Sci, Inst Chem, New Mat Lab, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang Shufeng,Qian Qingli,Guo Cunyue,et al. Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex[J]. ACTA CHIMICA SINICA,2009,67(1):59-64.
APA	Zhang Shufeng,Qian Qingli,Guo Cunyue,&Yuan Guoqing.(2009).Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex.ACTA CHIMICA SINICA,67(1),59-64.
MLA	Zhang Shufeng,et al."Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex".ACTA CHIMICA SINICA 67.1(2009):59-64.