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Article: Synthesis, reactivity and characterizations of amine bis(phenolate) lanthanide complexes and their application in the polymerization of ε-caprolactone

TitleSynthesis, reactivity and characterizations of amine bis(phenolate) lanthanide complexes and their application in the polymerization of ε-caprolactone
Authors
KeywordsComplexation
Infrared spectroscopy
Molecular structure
Polymerization
Rare earth elements
Issue Date2005
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallics
Citation
Organometallics, 2005, v. 24 n. 16, p. 4014-4020 How to Cite?
AbstractA series of amine bis(phenolato)lanthanide methyl and amido complexes were synthesized by general salt metathesis reaction in this paper. The reaction of anhydrous lanthanide trichlorides with 1 equiv of sodium amine bis(phenolate) LNa2 [L = Me2NCH2CH2N{CH2-(2-O-C6H2-But2-3,5)}2] in THF at room temperature gave the amine bis(phenolate) lanthanide chlorides LLnCl(THF) (Ln = Yb (1), Ln = Er (2)). Complexes 1 and 2 can be used as starting materials to prepare amine bis(phenolate) lanthanide derivatives. Complexes 1 and 2 reacted with lithium methyl and lithium amide, respectively, to give the corresponding lanthanide methyl and amido products LLnMe(THF) (Ln = Yb (3), Ln = Er (4)) and LLnNPh2(THF) (Ln = Yb (5), Ln = Er (6)). These complexes were well characterized by elemental analyses and IR spectra. The definitive molecular structures of complexes 1, 2, 3, 5, and 6 were provided by single-crystal X-ray analyses. Reactivity studies of complexes 3, 5, and 6 have shown them to be efficient initiators for the ring-opening polymerization of ε-caprolactone.
Persistent Identifierhttp://hdl.handle.net/10722/69060
ISSN
2015 Impact Factor: 4.186
2015 SCImago Journal Rankings: 2.043
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYao, YMen_HK
dc.contributor.authorMa, MTen_HK
dc.contributor.authorXu, XPen_HK
dc.contributor.authorZhang, Yen_HK
dc.contributor.authorShen, Qen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:10:11Z-
dc.date.available2010-09-06T06:10:11Z-
dc.date.issued2005en_HK
dc.identifier.citationOrganometallics, 2005, v. 24 n. 16, p. 4014-4020en_HK
dc.identifier.issn0276-7333en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69060-
dc.description.abstractA series of amine bis(phenolato)lanthanide methyl and amido complexes were synthesized by general salt metathesis reaction in this paper. The reaction of anhydrous lanthanide trichlorides with 1 equiv of sodium amine bis(phenolate) LNa2 [L = Me2NCH2CH2N{CH2-(2-O-C6H2-But2-3,5)}2] in THF at room temperature gave the amine bis(phenolate) lanthanide chlorides LLnCl(THF) (Ln = Yb (1), Ln = Er (2)). Complexes 1 and 2 can be used as starting materials to prepare amine bis(phenolate) lanthanide derivatives. Complexes 1 and 2 reacted with lithium methyl and lithium amide, respectively, to give the corresponding lanthanide methyl and amido products LLnMe(THF) (Ln = Yb (3), Ln = Er (4)) and LLnNPh2(THF) (Ln = Yb (5), Ln = Er (6)). These complexes were well characterized by elemental analyses and IR spectra. The definitive molecular structures of complexes 1, 2, 3, 5, and 6 were provided by single-crystal X-ray analyses. Reactivity studies of complexes 3, 5, and 6 have shown them to be efficient initiators for the ring-opening polymerization of ε-caprolactone.-
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallicsen_HK
dc.relation.ispartofOrganometallicsen_HK
dc.subjectComplexation-
dc.subjectInfrared spectroscopy-
dc.subjectMolecular structure-
dc.subjectPolymerization-
dc.subjectRare earth elements-
dc.titleSynthesis, reactivity and characterizations of amine bis(phenolate) lanthanide complexes and their application in the polymerization of ε-caprolactoneen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0276-7333&volume=24&spage=4014&epage=4020&date=2005&atitle=Synthesis,+reactivity+and+characterizations+of+amine+bis(phenolate)+lanthanide+complexes+and+their+application+in+the+polymerization+of+e-caprolactoneen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1021/om050296n-
dc.identifier.scopuseid_2-s2.0-23844518399-
dc.identifier.hkuros105975en_HK
dc.identifier.volume24-
dc.identifier.issue16-
dc.identifier.spage4014-
dc.identifier.epage4020-
dc.identifier.isiWOS:000230827200027-
dc.publisher.placeUnited States-

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