Synthesis and X-ray crystal structure of [Me2Si(C5Me2H2)((BuN)-Bu-t)]MCl2 (M = Ti, Zr) bearing a 3,4-dimethylcyclopentadienyl ring: Investigation of the substitution effect on the cyclopentadienyl (Cp) ring for catalytic performance in ethylene/1-octene (co)polymerization
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wu, Chun Ji | - |
dc.contributor.author | Nayab, Saira | - |
dc.contributor.author | Woo, Hyun Yul | - |
dc.contributor.author | Hahn, Jong Sok | - |
dc.contributor.author | Lee, Ho Seong | - |
dc.contributor.author | Kang, Sang Ook | - |
dc.contributor.author | Lee, Hyosun | - |
dc.date.accessioned | 2021-09-05T12:24:12Z | - |
dc.date.available | 2021-09-05T12:24:12Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-01-08 | - |
dc.identifier.issn | 0277-5387 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/99550 | - |
dc.description.abstract | Dimethylsilylene bridged 3,4-dimethylcyclopentadienyl/amido titanium and zirconium complexes, namely [Me2Si(C5Me2H2)((BuN)-Bu-t)]MCl2 (M = Ti, Zr), were synthesized by the reactions of the dilithium salt of the ligand with the corresponding inexpensive metal precursors TiCl4(THF)(2) and ZrCl4, respectively. These complexes were characterized by spectroscopic techniques and single crystal X-ray diffraction analysis. In addition, the obtained complexes exhibited high catalytic activities in the polymerization of ethylene and copolymerization of ethylene/1-octene, and afforded PE and poly(ethylene-co-1-octene)s with high molecular weights. Especially, the dimethyl-Cp substituted constrained geometry complex (CGC), [Me2Si(C5Me2H2)((BuN)-Bu-t)]TiCl2 exhibited a higher incorporation ratio of 1-octene at 80 degrees C compared to the tetramethyl-Cp substituted CGC, [Me2Si(C5Me4)((BuN)-Bu-t)]TiCl2 , which was judged by the density and C-13 NMR analysis of the obtained copolymer. This is presumably due to the steric and electronic effects of the two vicinal methyl groups in [Me2Si(C5Me2H2)((BuN)-Bu-t)]MCl2 during the (co)polymerization and specifically, no agostic interactions available in the propagation and termination steps of the (co)polymerization. (C) 2013 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | CONSTRAINED-GEOMETRY COMPLEXES | - |
dc.subject | OLEFIN POLYMERIZATION CATALYSTS | - |
dc.subject | GROUP-4 METAL-COMPLEXES | - |
dc.subject | METALLOCENE CATALYSTS | - |
dc.subject | TITANIUM COMPLEXES | - |
dc.subject | ALPHA-OLEFIN | - |
dc.subject | PROPYLENE POLYMERIZATION | - |
dc.subject | ZIRCONOCENE COMPLEXES | - |
dc.subject | MOLECULAR-STRUCTURES | - |
dc.subject | ETHYLENE | - |
dc.title | Synthesis and X-ray crystal structure of [Me2Si(C5Me2H2)((BuN)-Bu-t)]MCl2 (M = Ti, Zr) bearing a 3,4-dimethylcyclopentadienyl ring: Investigation of the substitution effect on the cyclopentadienyl (Cp) ring for catalytic performance in ethylene/1-octene (co)polymerization | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Sang Ook | - |
dc.identifier.doi | 10.1016/j.poly.2013.08.072 | - |
dc.identifier.scopusid | 2-s2.0-84884928580 | - |
dc.identifier.wosid | 000329557200024 | - |
dc.identifier.bibliographicCitation | POLYHEDRON, v.67, pp.199 - 204 | - |
dc.relation.isPartOf | POLYHEDRON | - |
dc.citation.title | POLYHEDRON | - |
dc.citation.volume | 67 | - |
dc.citation.startPage | 199 | - |
dc.citation.endPage | 204 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Crystallography | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.relation.journalWebOfScienceCategory | Crystallography | - |
dc.subject.keywordPlus | CONSTRAINED-GEOMETRY COMPLEXES | - |
dc.subject.keywordPlus | OLEFIN POLYMERIZATION CATALYSTS | - |
dc.subject.keywordPlus | GROUP-4 METAL-COMPLEXES | - |
dc.subject.keywordPlus | METALLOCENE CATALYSTS | - |
dc.subject.keywordPlus | TITANIUM COMPLEXES | - |
dc.subject.keywordPlus | ALPHA-OLEFIN | - |
dc.subject.keywordPlus | PROPYLENE POLYMERIZATION | - |
dc.subject.keywordPlus | ZIRCONOCENE COMPLEXES | - |
dc.subject.keywordPlus | MOLECULAR-STRUCTURES | - |
dc.subject.keywordPlus | ETHYLENE | - |
dc.subject.keywordAuthor | 3,4-Dimethylcyclopentadienyl | - |
dc.subject.keywordAuthor | Constrained geometry complex | - |
dc.subject.keywordAuthor | Titanocene | - |
dc.subject.keywordAuthor | Zirconocene | - |
dc.subject.keywordAuthor | 1-Octene | - |
dc.subject.keywordAuthor | Copolymerization | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.