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Article: Chiral poly (4-ethynylbenzoyl-l-valine)-induced helical self-assembly of alkynylplatinum(II) terpyridyl complexes with tunable electronic absorption, emission, and circular dichroism changes

TitleChiral poly (4-ethynylbenzoyl-l-valine)-induced helical self-assembly of alkynylplatinum(II) terpyridyl complexes with tunable electronic absorption, emission, and circular dichroism changes
Authors
KeywordsNoncovalent interactions
Platinum
Polyacetylene ligands
Self-assembly
UV/Vis spectroscopy
Issue Date2009
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistry
Citation
Chemistry - A European Journal, 2009, v. 15 n. 10, p. 2328-2334 How to Cite?
AbstractA chiral amino acid-containing polyacetylene, poly(4-ethynylbenzoyl-L- valine), was found to induce the aggregation and self-assembly of square-planar alkynylplatinum(II) terpyridyl complexes by electrostatic binding of the positively charged metal complexes to the anionic sites of the polyacetylene, as revealed by the appearance of new UV/Vis absorption and emission bands upon mixing under basic conditions. The induced complex self-assembly was found to be influenced by the polyacetylene and/or base concentration, and the effect of pH on the reversibility of the aggregate/monomer interconversion was also studied. The conformational changes of the polyacetylene were probed by circular dichroism (CD) spectroscopy, in which the chirality signal of the corresponding chain helicity in the presence of the base was enhanced and stabilized upon addition of the platinum(II) complexes. The induced complex aggregation was dependent on the structural properties of the polyacetylene, while the chirality of the polyacetylene was strongly influenced by the introduction of the complex. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/58396
ISSN
2015 Impact Factor: 5.771
2015 SCImago Journal Rankings: 2.323
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, KHYen_HK
dc.contributor.authorLam, JWYen_HK
dc.contributor.authorWong, KMCen_HK
dc.contributor.authorTang, BZen_HK
dc.contributor.authorYam, VWWen_HK
dc.date.accessioned2010-05-31T03:29:34Z-
dc.date.available2010-05-31T03:29:34Z-
dc.date.issued2009en_HK
dc.identifier.citationChemistry - A European Journal, 2009, v. 15 n. 10, p. 2328-2334en_HK
dc.identifier.issn0947-6539en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58396-
dc.description.abstractA chiral amino acid-containing polyacetylene, poly(4-ethynylbenzoyl-L- valine), was found to induce the aggregation and self-assembly of square-planar alkynylplatinum(II) terpyridyl complexes by electrostatic binding of the positively charged metal complexes to the anionic sites of the polyacetylene, as revealed by the appearance of new UV/Vis absorption and emission bands upon mixing under basic conditions. The induced complex self-assembly was found to be influenced by the polyacetylene and/or base concentration, and the effect of pH on the reversibility of the aggregate/monomer interconversion was also studied. The conformational changes of the polyacetylene were probed by circular dichroism (CD) spectroscopy, in which the chirality signal of the corresponding chain helicity in the presence of the base was enhanced and stabilized upon addition of the platinum(II) complexes. The induced complex aggregation was dependent on the structural properties of the polyacetylene, while the chirality of the polyacetylene was strongly influenced by the introduction of the complex. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.en_HK
dc.languageengen_HK
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistryen_HK
dc.relation.ispartofChemistry - A European Journalen_HK
dc.subjectNoncovalent interactionsen_HK
dc.subjectPlatinumen_HK
dc.subjectPolyacetylene ligandsen_HK
dc.subjectSelf-assemblyen_HK
dc.subjectUV/Vis spectroscopyen_HK
dc.titleChiral poly (4-ethynylbenzoyl-l-valine)-induced helical self-assembly of alkynylplatinum(II) terpyridyl complexes with tunable electronic absorption, emission, and circular dichroism changesen_HK
dc.typeArticleen_HK
dc.identifier.emailWong, KMC:wongmc@hku.hken_HK
dc.identifier.emailYam, VWW:wwyam@hku.hken_HK
dc.identifier.authorityWong, KMC=rp00809en_HK
dc.identifier.authorityYam, VWW=rp00822en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/chem.200802324en_HK
dc.identifier.scopuseid_2-s2.0-62349096600en_HK
dc.identifier.hkuros158340en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-62349096600&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume15en_HK
dc.identifier.issue10en_HK
dc.identifier.spage2328en_HK
dc.identifier.epage2334en_HK
dc.identifier.isiWOS:000264029500014-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridChan, KHY=26423538300en_HK
dc.identifier.scopusauthoridLam, JWY=7201972955en_HK
dc.identifier.scopusauthoridWong, KMC=8061067200en_HK
dc.identifier.scopusauthoridTang, BZ=7402560926en_HK
dc.identifier.scopusauthoridYam, VWW=18539304700en_HK

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