ICCAS OpenIR
Palladium and iridium complexes with a N,P,N-bis(pyridine) phenylphosphine ligand
Liu, Shaofeng1,2,3; Peloso, Riccardo1; Braunstein, Pierre1
2010
Source PublicationDALTON TRANSACTIONS
ISSN1477-9226
Volume39Issue:10Pages:2563-2572
AbstractA 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.
DOI10.1039/b919679j
Indexed BySCI
Language英语
WOS IDWOS:000274920400013
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69392
Collection中国科学院化学研究所
Corresponding AuthorBraunstein, Pierre
Affiliation1.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
Recommended Citation
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.
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