TY - JOUR
T1 - Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes
AU - Douthwaite, Richard
AU - Green, MLH
AU - Silcock, PJ
AU - Gomes, PT
PY - 2002/4/1
Y1 - 2002/4/1
N2 - 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.
AB - 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.
U2 - 10.1039/b110261n
DO - 10.1039/b110261n
M3 - Article
SP - 1386
EP - 1390
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
SN - 1472-7773
IS - 7
ER -