TY - JOUR
T1 - Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II)
T2 - Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts
AU - Guzei, Ilia A.
AU - Li, Kelin
AU - Bikzhanova, Galina A.
AU - Darkwa, James
AU - Mapolie, Selwyn F.
PY - 2003/2/21
Y1 - 2003/2/21
N2 - A series of novel compounds with pyrazolyl rings (pz) linked by benzenedicarbonyl (L1-L4) and benzenetricarbonyl (L5, L6) have been prepared and structurally characterized. The mutual orientation of their rings was studied by molecular mechanics. These polydentate species react with PdCl2(NCMe)2 to yield dinuclear complexes in which the Pd centers coordinate to one or two pz units, a terminal chloride and two bridging chloride ligands. In complex [{(3,5-tBu2pzCO)3-1,3,5-C6 H4}Pd2Cl2(μ-Cl)2]4 the pyrazolyl ligand L5 acts as a bidentate donor despite the presence of the third pz group. These Pd complexes, when activated with methylaluminoxide (MAO), exhibit activity in ethylene polymerization.
AB - A series of novel compounds with pyrazolyl rings (pz) linked by benzenedicarbonyl (L1-L4) and benzenetricarbonyl (L5, L6) have been prepared and structurally characterized. The mutual orientation of their rings was studied by molecular mechanics. These polydentate species react with PdCl2(NCMe)2 to yield dinuclear complexes in which the Pd centers coordinate to one or two pz units, a terminal chloride and two bridging chloride ligands. In complex [{(3,5-tBu2pzCO)3-1,3,5-C6 H4}Pd2Cl2(μ-Cl)2]4 the pyrazolyl ligand L5 acts as a bidentate donor despite the presence of the third pz group. These Pd complexes, when activated with methylaluminoxide (MAO), exhibit activity in ethylene polymerization.
UR - http://www.scopus.com/inward/record.url?scp=0037458348&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0037458348
SN - 1472-7773
SP - 715
EP - 722
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
IS - 4
ER -