Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II): Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts

Ilia A. Guzei; Kelin Li; Galina A. Bikzhanova; James Darkwa; Selwyn F. Mapolie

Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II): Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts

Ilia A. Guzei, Kelin Li, Galina A. Bikzhanova, James Darkwa, Selwyn F. Mapolie

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	715-722
Number of pages	8
Journal	Journal of the Chemical Society. Dalton Transactions
Issue number	4
Publication status	Published - 21 Feb 2003
Externally published	Yes

ASJC Scopus subject areas

General Chemistry

Cite this

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title = "Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II): Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts",

abstract = "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.",

author = "Guzei, \{Ilia A.\} and Kelin Li and Bikzhanova, \{Galina A.\} and James Darkwa and Mapolie, \{Selwyn F.\}",

year = "2003",

month = feb,

day = "21",

language = "English",

pages = "715--722",

journal = "Journal of the Chemical Society. Dalton Transactions",

issn = "1472-7773",

publisher = "Royal Society of Chemistry",

number = "4",

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Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II): Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts. / Guzei, Ilia A.; Li, Kelin; Bikzhanova, Galina A. et al.
In: Journal of the Chemical Society. Dalton Transactions, No. 4, 21.02.2003, p. 715-722.

Research output: Contribution to journal › Article › peer-review

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 - https://www.scopus.com/pages/publications/0037458348

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 -

Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(II): Synthesis, X-ray structures and evaluation as ethylene polymerisation catalysts

Abstract

ASJC Scopus subject areas

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