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Journal of Coordination Chemistry Volume 66, 2013 - Issue 18
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Original Articles

Synthesis, structure and catalytic properties of new half-titanocene complexes bearing substituted cyclopentadienyl and aryloxide ligands

Mina HeSchool of Chemistry, Jilin University, Chang Chun, P.R. China
,
Pei LiSchool of Chemistry, Jilin University, Chang Chun, P.R. China
,
Qing SuSchool of Chemistry, Jilin University, Chang Chun, P.R. ChinaCorrespondence[email protected] [email protected]
,
Qiaolin WuSchool of Chemistry, Jilin University, Chang Chun, P.R. ChinaCorrespondence[email protected] [email protected]
,
Ling YeState Key Laboratory of Supramolecular Structure and Materials, Jilin University, Chang Chun, P.R. China
&
Ying MuSchool of Chemistry, Jilin University, Chang Chun, P.R. China;State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Chang Chun, P.R. China
Pages 3272-3279 | Received 26 Apr 2013, Accepted 26 Jul 2013, Published online: 05 Sep 2013
 
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Abstract

New cyclopentadienyltitanium aryloxide complexes, 1-phenyl-2,3,4,5-Me4CpTi(O-2,6-iPr2-4-nBu-C6H2)Cl2 (1) and [4,4′-biphenyl-(2,3,4,5-Me4Cp)2][Ti(O-2,6-iPr2-4-nBu-C6H2)Cl2]2 (2), have been prepared by treatment of cyclopentadienyltitanium trichloride complexes [PhMe4CpTiCl3 and 4,4′-biphenyl-(Me4CpTiCl3)2] with 1 or 2 equiv of lithium salt of 2,6-di-isopropyl-4-butylphenol. Complexes 1 and 2 have been characterized by elemental analysis, 1H and 13C NMR spectroscopy. The molecular structure of 1 has been determined by single-crystal X-ray diffraction. Upon activation with iBu3Al and Ph3CB(C6F5)4, 1 and 2 both exhibit good catalytic activity for ethylene polymerization, producing polyethylene with moderate molecular weight and melting point.

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 21004026).

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