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Article: Metal ion enhanced phosphorescence of 2,3-naphtho-10-aza-15-crown-5: A possible molecular photonic operator

TitleMetal ion enhanced phosphorescence of 2,3-naphtho-10-aza-15-crown-5: A possible molecular photonic operator
Authors
Keywords2,3-naphtho-10-aza-15-crown-5
Energy transfer
Photoinduced intramolecular electron transfer
Issue Date2002
PublisherZhongguo Kexueyuan, Shanghai Youji Huaxue Yanjiusuo. The Journal's web site is located at http://www.sioc-journal.cn/zghx/index_en.asp
Citation
Chinese Journal Of Chemistry, 2002, v. 20 n. 2, p. 135-141 How to Cite?
AbstractA novel crown ether, 2,3-naphtho-10-aza-15-crown-5 (NAC) was synthesized. This compound does not show strong fluorescence and phosphorescence due to photoinduced intramolecular electron transfer from the nitrogen lone pair of electrons to the singlet excited state of the naphthalene chromophore. Complexation with heavy-metal ions results in the quenching of the fluorescence and enhancement of the phosphorescence significantly. These observations were interpreted in terms of the binding interactions, between the nitrogen lone pair electrons and the metal cation, which prevent photoinduced intramolecular electron transfer, and the heavy-atom effects which induce quenching of the fluorescence and enhancement of the phosphorescence. These azacrown and heavy-metal-based systems could be useful as potential chemical sensors and molecular photonic devices.
Persistent Identifierhttp://hdl.handle.net/10722/68968
ISSN
2015 Impact Factor: 1.872
2015 SCImago Journal Rankings: 0.441
References

 

DC FieldValueLanguage
dc.contributor.authorLi, LQen_HK
dc.contributor.authorZhang, LPen_HK
dc.contributor.authorWu, LZen_HK
dc.contributor.authorWang, BJen_HK
dc.contributor.authorTung, CHen_HK
dc.contributor.authorChe, CMen_HK
dc.date.accessioned2010-09-06T06:09:21Z-
dc.date.available2010-09-06T06:09:21Z-
dc.date.issued2002en_HK
dc.identifier.citationChinese Journal Of Chemistry, 2002, v. 20 n. 2, p. 135-141en_HK
dc.identifier.issn1001-604Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/68968-
dc.description.abstractA novel crown ether, 2,3-naphtho-10-aza-15-crown-5 (NAC) was synthesized. This compound does not show strong fluorescence and phosphorescence due to photoinduced intramolecular electron transfer from the nitrogen lone pair of electrons to the singlet excited state of the naphthalene chromophore. Complexation with heavy-metal ions results in the quenching of the fluorescence and enhancement of the phosphorescence significantly. These observations were interpreted in terms of the binding interactions, between the nitrogen lone pair electrons and the metal cation, which prevent photoinduced intramolecular electron transfer, and the heavy-atom effects which induce quenching of the fluorescence and enhancement of the phosphorescence. These azacrown and heavy-metal-based systems could be useful as potential chemical sensors and molecular photonic devices.en_HK
dc.languageengen_HK
dc.publisherZhongguo Kexueyuan, Shanghai Youji Huaxue Yanjiusuo. The Journal's web site is located at http://www.sioc-journal.cn/zghx/index_en.aspen_HK
dc.relation.ispartofChinese Journal of Chemistryen_HK
dc.subject2,3-naphtho-10-aza-15-crown-5en_HK
dc.subjectEnergy transferen_HK
dc.subjectPhotoinduced intramolecular electron transferen_HK
dc.titleMetal ion enhanced phosphorescence of 2,3-naphtho-10-aza-15-crown-5: A possible molecular photonic operatoren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1001-604X&volume=20&spage=135&epage=141&date=2002&atitle=Metal+ion+enhanced+phosphorescence+of+2,3-naphtho-10-aza-15-crown-5:+a+possible+molecular+photonic+operatoren_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/cjoc.20020200205-
dc.identifier.scopuseid_2-s2.0-14744272275en_HK
dc.identifier.hkuros76381en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-14744272275&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue2en_HK
dc.identifier.spage135en_HK
dc.identifier.epage141en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridLi, LQ=7501451829en_HK
dc.identifier.scopusauthoridZhang, LP=8288249300en_HK
dc.identifier.scopusauthoridWu, LZ=7404902993en_HK
dc.identifier.scopusauthoridWang, BJ=7405918998en_HK
dc.identifier.scopusauthoridTung, CH=7201776933en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK

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