Syntheses and spectroscopic characteristics of dialkylpalladium(II) complexes; PdR2(cod) as precursors for derivatives with N- or P-donor ligands
摘要:
Cycloocta-1,5-diene dialkylpalladium(II) derivatives, PdR2(cod), (R = CH2SiMe3, CH2SiMe2Ph) have been isolated and used conveniently as precursors in the preparation of dialkylpalladium complexes, PdR2L2, with N- or P-donor ancillary ligands (R = CH2SiMe3; L-2 = bipy, phen, dppp, dpkt or tmen; L = PMe3; R = CH2SiMe2Ph; L-2 = bipy; dpkt). The complexes Pd(CH2CMe2Ph)(2)(dppe) and PdMe2(bipy) were also prepared from their cyclooctadiene analogues. All have been characterized by H-1-,C-13- and P-31-NMR and IR spectroscopy. (C) 1999 Published by Elsevier Science S.A. All rights reserved.