Zirconium complexes containing bidentate pyrrole ligands: Synthesis, structural characterization, and ethylene polymerization

Jui Hsien Huang, Liang Sheng Chi, Ru Ching Yu, George J. Jiang, Wei Tang Yang, Gene Hsiang Lee, Shie Ming Peng

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Reactions of ZrCl4 with 2 or 3 equiv of Li[C4H3N(CH2NMe2)-2] in toluene afford ZrCl2[C4H3N(CH2 NMe2)-2]2 (1) and ZrCl[C4H3N(CH2NMe2)-2]3 (2), respectively. Compounds 1 and 2 are characterized by NMR spectroscopy and single-crystal X-ray diffraction. Compound 1 exists as a six-coordinate octahedral structure with the two NMe2 units taking trans positions, and the seven-coordinate compound 2 shows a chloride-capped octahedral structure in which three bidentate pyrrole ligands form a pseudo-propeller structure with a δλλ form. A polymerization study shows that compounds 1 and 2 exhibit moderate activity toward ethylene, with compound 2 having higher activity.

Original languageEnglish
Pages (from-to)5788-5791
Number of pages4
JournalOrganometallics
Volume20
Issue number26
DOIs
Publication statusPublished - 2001 Dec 24

Fingerprint

Pyrroles
Toluene
pyrroles
Propellers
Nuclear magnetic resonance spectroscopy
Chlorides
ethylene
polymerization
Polymerization
Single crystals
Ligands
X ray diffraction
ligands
propellers
synthesis
toluene
chlorides
nuclear magnetic resonance
single crystals
diffraction

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Huang, Jui Hsien ; Chi, Liang Sheng ; Yu, Ru Ching ; Jiang, George J. ; Yang, Wei Tang ; Lee, Gene Hsiang ; Peng, Shie Ming. / Zirconium complexes containing bidentate pyrrole ligands : Synthesis, structural characterization, and ethylene polymerization. In: Organometallics. 2001 ; Vol. 20, No. 26. pp. 5788-5791.
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abstract = "Reactions of ZrCl4 with 2 or 3 equiv of Li[C4H3N(CH2NMe2)-2] in toluene afford ZrCl2[C4H3N(CH2 NMe2)-2]2 (1) and ZrCl[C4H3N(CH2NMe2)-2]3 (2), respectively. Compounds 1 and 2 are characterized by NMR spectroscopy and single-crystal X-ray diffraction. Compound 1 exists as a six-coordinate octahedral structure with the two NMe2 units taking trans positions, and the seven-coordinate compound 2 shows a chloride-capped octahedral structure in which three bidentate pyrrole ligands form a pseudo-propeller structure with a δλλ form. A polymerization study shows that compounds 1 and 2 exhibit moderate activity toward ethylene, with compound 2 having higher activity.",
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Zirconium complexes containing bidentate pyrrole ligands : Synthesis, structural characterization, and ethylene polymerization. / Huang, Jui Hsien; Chi, Liang Sheng; Yu, Ru Ching; Jiang, George J.; Yang, Wei Tang; Lee, Gene Hsiang; Peng, Shie Ming.

In: Organometallics, Vol. 20, No. 26, 24.12.2001, p. 5788-5791.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Zirconium complexes containing bidentate pyrrole ligands

T2 - Synthesis, structural characterization, and ethylene polymerization

AU - Huang, Jui Hsien

AU - Chi, Liang Sheng

AU - Yu, Ru Ching

AU - Jiang, George J.

AU - Yang, Wei Tang

AU - Lee, Gene Hsiang

AU - Peng, Shie Ming

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N2 - Reactions of ZrCl4 with 2 or 3 equiv of Li[C4H3N(CH2NMe2)-2] in toluene afford ZrCl2[C4H3N(CH2 NMe2)-2]2 (1) and ZrCl[C4H3N(CH2NMe2)-2]3 (2), respectively. Compounds 1 and 2 are characterized by NMR spectroscopy and single-crystal X-ray diffraction. Compound 1 exists as a six-coordinate octahedral structure with the two NMe2 units taking trans positions, and the seven-coordinate compound 2 shows a chloride-capped octahedral structure in which three bidentate pyrrole ligands form a pseudo-propeller structure with a δλλ form. A polymerization study shows that compounds 1 and 2 exhibit moderate activity toward ethylene, with compound 2 having higher activity.

AB - Reactions of ZrCl4 with 2 or 3 equiv of Li[C4H3N(CH2NMe2)-2] in toluene afford ZrCl2[C4H3N(CH2 NMe2)-2]2 (1) and ZrCl[C4H3N(CH2NMe2)-2]3 (2), respectively. Compounds 1 and 2 are characterized by NMR spectroscopy and single-crystal X-ray diffraction. Compound 1 exists as a six-coordinate octahedral structure with the two NMe2 units taking trans positions, and the seven-coordinate compound 2 shows a chloride-capped octahedral structure in which three bidentate pyrrole ligands form a pseudo-propeller structure with a δλλ form. A polymerization study shows that compounds 1 and 2 exhibit moderate activity toward ethylene, with compound 2 having higher activity.

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