Titanium complexes containing new dianionic tetradentate [ONNO]-type ligands with benzyl substituents on bridging nitrogen atoms: Syntheses, X-ray structures, and catalytic activities in ring opening polymerization of lactide

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dc.contributor.authorKim, SHko
dc.contributor.authorLee, Jko
dc.contributor.authorKim, DJko
dc.contributor.authorMoon, JHko
dc.contributor.authorYoon, Sungwooko
dc.contributor.authorOh, HJko
dc.contributor.authorDo, Youngkyuko
dc.contributor.authorKo, YSko
dc.contributor.authorYim, JHko
dc.contributor.authorKim, Yko
dc.date.accessioned2013-03-11T02:01:41Z-
dc.date.available2013-03-11T02:01:41Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2009-10-
dc.identifier.citationJOURNAL OF ORGANOMETALLIC CHEMISTRY, v.694, no.21, pp.3409 - 3417-
dc.identifier.issn0022-328X-
dc.identifier.urihttp://hdl.handle.net/10203/97993-
dc.description.abstractSeveral titanium isopropoxides 1-8 have been prepared by the reaction of Ti(O-i-Pr)(4) with a series of corresponding tetradentate Salan-type [ONNO] ligands with benzyl or methyl substituents on bridging nitrogen atoms. They have been characterized by (1)H NMR, (13)C{(1)H} NMR, and elemental analysis. Solid state structures of compounds 2, 4, 6, and 7 have been determined by X-ray crystallography. X-ray diffraction analysis and (1)H NMR confirmed that these titanium complexes were all monomeric species with a six-coordinated central titanium in their solid and solution structures. Complexes 2, 4, 6, and 8 with benzyl substituents on bridging nitrogens gave PLA with higher molecular weight than compounds 1, 3, 5, and 7 with methyl substituents did. (C) 2009 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE SA-
dc.subjectCHELATING DIARYLOXO LIGANDS-
dc.subjectCYCLIC ESTERS-
dc.subjectALKOXIDE INITIATORS-
dc.subjectOLEFIN POLYMERIZATION-
dc.subjectLIVING POLYMERIZATION-
dc.subjectZIRCONIUM COMPLEXES-
dc.subjectALUMINUM-
dc.subjectCHLOROTITANIUM-
dc.subjectTITANATRANES-
dc.titleTitanium complexes containing new dianionic tetradentate [ONNO]-type ligands with benzyl substituents on bridging nitrogen atoms: Syntheses, X-ray structures, and catalytic activities in ring opening polymerization of lactide-
dc.typeArticle-
dc.identifier.wosid000269311200008-
dc.identifier.scopusid2-s2.0-68949220856-
dc.type.rimsART-
dc.citation.volume694-
dc.citation.issue21-
dc.citation.beginningpage3409-
dc.citation.endingpage3417-
dc.citation.publicationnameJOURNAL OF ORGANOMETALLIC CHEMISTRY-
dc.identifier.doi10.1016/j.jorganchem.2009.06.037-
dc.contributor.localauthorDo, Youngkyu-
dc.contributor.nonIdAuthorKim, SH-
dc.contributor.nonIdAuthorLee, J-
dc.contributor.nonIdAuthorKim, DJ-
dc.contributor.nonIdAuthorMoon, JH-
dc.contributor.nonIdAuthorYoon, Sungwoo-
dc.contributor.nonIdAuthorOh, HJ-
dc.contributor.nonIdAuthorKo, YS-
dc.contributor.nonIdAuthorYim, JH-
dc.contributor.nonIdAuthorKim, Y-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorTitanium-
dc.subject.keywordAuthorTetradentate-
dc.subject.keywordAuthorSalan ligand-
dc.subject.keywordAuthorX-ray diffraction-
dc.subject.keywordAuthorPolylactide-
dc.subject.keywordPlusCHELATING DIARYLOXO LIGANDS-
dc.subject.keywordPlusCYCLIC ESTERS-
dc.subject.keywordPlusALKOXIDE INITIATORS-
dc.subject.keywordPlusOLEFIN POLYMERIZATION-
dc.subject.keywordPlusLIVING POLYMERIZATION-
dc.subject.keywordPlusZIRCONIUM COMPLEXES-
dc.subject.keywordPlusALUMINUM-
dc.subject.keywordPlusCHLOROTITANIUM-
dc.subject.keywordPlusTITANATRANES-
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