Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand

doi:10.1039/b919679j

CORC > 化学研究所 > 中国科学院化学研究所

	Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand
	Liu, Shaofeng 1,2,3; Peloso, Riccardo 1; Braunstein, Pierre 1
刊名	DALTON TRANSACTIONS
	2010
卷号	39 期号:10 页码:2563-2572
ISSN号	1477-9226
DOI	10.1039/b919679j
英文摘要	A variety of Pd(II) complexes containing the neutral N,P,N-ligand bis(2-picolyl)phenylphosphine (N(py)PN(py)) have been synthesised and characterized by IR and NMR spectroscopy and X-ray diffraction. The neutral complex [PdCl(2)(N(py)PN(py)-N,P)] ( 1) has been selectively obtained in high yield by reaction of [PdCl(2)(NCPh)(2)] with the ligand in dichloromethane. The cationic complexes [PdCl(N(py)PN(py)-N, P, N)]PF(6) ( 2) and [Pd(N(py)PN(py)-N,P,N)(NCMe)](PF(6))(2) ( 5) have been prepared from the same reagents by addition to the reaction mixture of one or two equivalents of TlPF(6), respectively. It was found that dynamic exchange of the pyridine rings of 1 occurs on the NMR time-scale and possible mechanisms are discussed. As a by-product of the synthesis of 2, the unexpected dinuclear complex [Pd(2)Cl(2)(mu-N(py)PN(py))(2)](PF(6))(2) ( 3) has been isolated in 10% yield. Its molecular structure in the solid state reveals the presence of two NpyPNpy chelating/bridging ligands. The cationic complex [Pd(2)Cl(2)(m-N(py)PN(py))(2)](2+) was then selectively obtained by reaction of cis-[Pd(N(py)PN(py)-N, P)(2)](BF(4))(2) ( 4) with [PdCl(2)(cod)]. (1)H- and (31)P{(1)H} NMR studies have demonstrated that 3 converts slowly into 2 in DMSO solution. The Ir(I) complexes [IrCl(cod)(NpyPNpy)] (6) and [Ir(cod)(N(py)PN(py)-N, P, N)]BAr(F) ( 7) have also been prepared, the latter exhibits a trigonal bipyramidal structure with the ligand displaying a facial coordination mode. Compound 7 represents a rare example of an Ir(I) complex bearing a N,P,N-chelating ligand.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000274920400013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/69391]
专题	中国科学院化学研究所
通讯作者	Braunstein, Pierre
作者单位	1.Univ Strasbourg, Inst Chim, CNRS, Lab Chim & Coordinat,UMR 7177, F-67070 Strasbourg, France 2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shaofeng,Peloso, Riccardo,Braunstein, Pierre. Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand[J]. DALTON TRANSACTIONS,2010,39(10):2563-2572.
APA	Liu, Shaofeng,Peloso, Riccardo,&Braunstein, Pierre.(2010).Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand.DALTON TRANSACTIONS,39(10),2563-2572.
MLA	Liu, Shaofeng,et al."Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand".DALTON TRANSACTIONS 39.10(2010):2563-2572.