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Article: Modular cyclometalated platinum(II) complexes as luminescent molecular sensors for pH and hydrophobic binding regions

TitleModular cyclometalated platinum(II) complexes as luminescent molecular sensors for pH and hydrophobic binding regions
Authors
KeywordsElection transfer
Luminescence
Micelles
Platinum
Sensors
Issue Date1999
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, 1999, v. 5 n. 10, p. 2845-2849 How to Cite?
AbstractThe photophysical properties of the ionisable cyclometalated platinum(II) complex [Pt(CNN)L]ClO4, 1-ClO4 (HCNN = 6-phenyl-2,2′-bipyridine, L = Ph2PCH2NHPh) and its analogue [Pt(CNN)PPh2CH3]ClO4, 2-ClO4 are investigated. The quantum yield of the 3MLCT emission (MLCT = metal-to-ligand charge transfer) for 1 (λmax 543 nm in acetonitrile at 298 K) is significantly lower than that for 2 due to photoinduced electron transfer (PET) quenching by the amine component. Complex 1 exhibits different emission intensities over a wide pH range in aqueous and micellar solutions based on the mechanism of PET suppression. The photoluminescence of 1 is employed to estimate the critical micelle concentration.
Persistent Identifierhttp://hdl.handle.net/10722/69018
ISSN
2015 Impact Factor: 5.771
2015 SCImago Journal Rankings: 2.323
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, KHen_HK
dc.contributor.authorChan, MCWen_HK
dc.contributor.authorChe, CMen_HK
dc.date.accessioned2010-09-06T06:09:48Z-
dc.date.available2010-09-06T06:09:48Z-
dc.date.issued1999en_HK
dc.identifier.citationChemistry - A European Journal, 1999, v. 5 n. 10, p. 2845-2849en_HK
dc.identifier.issn0947-6539en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69018-
dc.description.abstractThe photophysical properties of the ionisable cyclometalated platinum(II) complex [Pt(CNN)L]ClO4, 1-ClO4 (HCNN = 6-phenyl-2,2′-bipyridine, L = Ph2PCH2NHPh) and its analogue [Pt(CNN)PPh2CH3]ClO4, 2-ClO4 are investigated. The quantum yield of the 3MLCT emission (MLCT = metal-to-ligand charge transfer) for 1 (λmax 543 nm in acetonitrile at 298 K) is significantly lower than that for 2 due to photoinduced electron transfer (PET) quenching by the amine component. Complex 1 exhibits different emission intensities over a wide pH range in aqueous and micellar solutions based on the mechanism of PET suppression. The photoluminescence of 1 is employed to estimate the critical micelle concentration.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.subjectElection transferen_HK
dc.subjectLuminescenceen_HK
dc.subjectMicellesen_HK
dc.subjectPlatinumen_HK
dc.subjectSensorsen_HK
dc.titleModular cyclometalated platinum(II) complexes as luminescent molecular sensors for pH and hydrophobic binding regionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0947-6539&volume=5&issue=10&spage=2845&epage=2849&date=1999&atitle=Modular+cyclometalated+platinum(II)+complexes+as+luminescent+molecular+sensors+for+pH+and+Hydrophobic+binding+regionsen_HK
dc.identifier.emailChe, CM:cmche@hku.hken_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/(SICI)1521-3765(19991001)5:10<2845::AID-CHEM2845>3.0.CO;2-G-
dc.identifier.scopuseid_2-s2.0-0032819916en_HK
dc.identifier.hkuros51147en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032819916&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5en_HK
dc.identifier.issue10en_HK
dc.identifier.spage2845en_HK
dc.identifier.epage2849en_HK
dc.identifier.isiWOS:000083059400008-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridWong, KH=7404758953en_HK
dc.identifier.scopusauthoridChan, MCW=7402598116en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK

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