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Synthesis and structural characterisation of the palladium N-heterocyclic carbene cluster complexes [Pd3(μ-CO)3(NHC)3] and [Pd3(μ-SO2)3(NHC)3]
被引:15
|作者:
Ellul, Charles E.
[1
]
Mahon, Mary F.
[1
]
Whittlesey, Michael K.
[1
]
机构:
[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England
关键词:
N-heterocyclic carbenes;
Palladium complexes;
Cluster chemistry;
ELECTRON-RICH OLEFIN;
X-RAY STRUCTURE;
MOLECULAR-STRUCTURE;
METHYL-GROUP;
C-H;
TRIANGULO-CLUSTERS;
CARBONYL CLUSTERS;
REACTIVITY;
LIGANDS;
COORDINATION;
D O I:
10.1016/j.jorganchem.2009.09.018
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The reduction of trans-[Pd(NHC)(2)Cl-2] (NHC = IMes, 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene; (IPr2)-Pr-i = 1,3-bis-isopropylimidazol-2-ylidene) with potassium graphite under an atmosphere of CO affords the palladium NHC carbonyl clusters [Pd-3(mu-CO)(3)(NHC)(3)] (NHC = IMes, 1; (IPr2)-Pr-i, 3). Treatment of 1 with SO2 at room temperature yields the bridging SO2 complex [Pd-3(mu-SO2)(3)(IMes)(3)] (4) in quantitative yield. Complexes 1, 3 and 4 have been structurally characterised by X-ray crystallography. (C) 2009 Elsevier B. V. All rights reserved.
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页码:6 / 10
页数:5
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