Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes

被引:84
作者
Douthwaite, RE [1 ]
Green, MLH
Silcock, PJ
Gomes, PT
机构
[1] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England
[2] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England
[3] Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2002年 / 07期
关键词
D O I
10.1039/b110261n
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, (CCmeth)-C-tBa and (CCeth)-C-tBu (where (CCmeth)-C-tBu = 1, 1'-methylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene and (CCeth)-C-tBu = 1,2-ethylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene), have been prepared. The complexes [Pd((CCmeth)-C-tBu)Me-2] (1) and [Pd((CCeth)-C-tBu)Me-2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When I and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd((CCmeth)-C-tBu)MC(py)(+) (3), [Pd((CCeth)-C-tBu)Me(py)(+) (4), [Pd(C-tBu(D)-eta-C-meth)Me(eta(2)-bipy)](-) (5), and [Pd(C-tBu(D)-eta-C-eth)Me(eta(2)-bip)(+) (6). are observed spectroscopically.
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页码:1386 / 1390
页数:5
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