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Issue 7, 2002
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Cationic and neutral palladium(ii) methyl complexes of di-N-heterocyclic carbenes

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Abstract

Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, tBuCCmeth and tBuCCeth (where tBuCCmeth = 1,1′-methylene-3,3′-di-tert-butyldiimidazol-2,2′-diylidene and tBuCCeth = 1,2-ethylene-3,3′-di-tert-butyldiimidazol-2,2′-diylidene), have been prepared. The complexes [Pd(tBuCCmeth)Me2] (1) and [Pd(tBuCCeth)Me2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When 1 and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd(tBuCCmeth)Me(py)]+ (3), [Pd(tBuCCeth)Me(py)]+ (4), [Pd(tBuC(D)-η-Cmeth)Me(η2-bipy)]+ (5), and [Pd(tBuC(D)-η-Ceth)Me(η2-bipy)]+ (6), are observed spectroscopically.

Graphical abstract: Cationic and neutral palladium(ii) methyl complexes of di-N-heterocyclic carbenes

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Article information


Submitted
09 Nov 2001
Accepted
24 Jan 2002
First published
06 Mar 2002

J. Chem. Soc., Dalton Trans., 2002, 1386-1390
Article type
Paper

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

R. E. Douthwaite, M. L. H. Green, P. J. Silcock and P. T. Gomes, J. Chem. Soc., Dalton Trans., 2002, 1386
DOI: 10.1039/B110261N

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