ICCAS OpenIR
Synthesis and characterization of the titanium complexes bearing two regioisomeric trifluoromethyl-containing enaminoketonato ligands and their behavior in ethylene polymerization
Ye, Wei-Ping1,2; Mu, Hong-Liang1,2; Shi, Xin-Cui1,2; Cheng, Yan-Xiang1; Li, Yue-Sheng1
2009
Source PublicationDALTON TRANSACTIONS
ISSN1477-9226
Issue43Pages:9452-9465
AbstractA series of new titanium complexes bearing two regioisomeric trifluoromethyl-containing enaminoketonato ligands (3a-h and 6a-h), [PhN=CRCHC(CF(3))O](2)TiCl(2) (3a, R = Me; 3b, R = n-C(5)H(11); 3c, R = i-Pr; 3d, R = Cy; 3e, R = t-Bu; 3f, R = CH=CHPh; 3g, R = Et; 3h, R = n-C(11)H(23)) and [PhN=C(CF(3))CHC(R)O](2)TiCl(2) (6a, R = Ph; 6b, R = n-C(5)H(11); 6c, R = i-Pr; 6d, R = Cy; 6e, R = t-Bu; 6f, R = CH=CHPh; 6g, R = CHPh(2); 6h, R = CF(3)) have been synthesized and characterized. X-ray crystal structures analyses suggest that complexes 3c-e and 6c-d all adopt a distorted octahedral geometry around the titanium center. Complexes 3c, 3d and 6c display a cis-configuration of the two chlorine atoms around the titanium center, while complex 6d shows a trans-configuration of the two chlorine atoms. Especially, the configurational isomers (cis and trans) of complex 3e were identified both in solution and in the solid state by NMR and X-ray analyses. With modified methylaluminoxane as a cocatalyst, all the complexes are active towards ethylene polymerization, and produce high molecular weight polymers. With the variation of the relative position of the imino group and the trifluoromethyl group of the beta-enaminoketonato ligands, the polymerization behavior of the catalysts changed remarkably. It is observed that the substituent directly joined to the carbonyl in the ligands plays an important role for both the catalytic activities and the properties of the polymers produced.
DOI10.1039/b906854f
Indexed BySCI
Language英语
WOS IDWOS:000271162300015
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67686
Collection中国科学院化学研究所
Corresponding AuthorLi, Yue-Sheng
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Changchun Branch, Grad Sch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Ye, Wei-Ping,Mu, Hong-Liang,Shi, Xin-Cui,et al. Synthesis and characterization of the titanium complexes bearing two regioisomeric trifluoromethyl-containing enaminoketonato ligands and their behavior in ethylene polymerization[J]. DALTON TRANSACTIONS,2009(43):9452-9465.
APA Ye, Wei-Ping,Mu, Hong-Liang,Shi, Xin-Cui,Cheng, Yan-Xiang,&Li, Yue-Sheng.(2009).Synthesis and characterization of the titanium complexes bearing two regioisomeric trifluoromethyl-containing enaminoketonato ligands and their behavior in ethylene polymerization.DALTON TRANSACTIONS(43),9452-9465.
MLA Ye, Wei-Ping,et al."Synthesis and characterization of the titanium complexes bearing two regioisomeric trifluoromethyl-containing enaminoketonato ligands and their behavior in ethylene polymerization".DALTON TRANSACTIONS .43(2009):9452-9465.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ye, Wei-Ping]'s Articles
[Mu, Hong-Liang]'s Articles
[Shi, Xin-Cui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ye, Wei-Ping]'s Articles
[Mu, Hong-Liang]'s Articles
[Shi, Xin-Cui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ye, Wei-Ping]'s Articles
[Mu, Hong-Liang]'s Articles
[Shi, Xin-Cui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.