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Article: Deep Red to Near-Infrared Emitting Rhenium(I) Complexes: Synthesis, Characterization, Electrochemistry, Photophysics, and Electroluminescence Studies

TitleDeep Red to Near-Infrared Emitting Rhenium(I) Complexes: Synthesis, Characterization, Electrochemistry, Photophysics, and Electroluminescence Studies
Authors
Issue Date2013
PublisherWiley-VCH Verlag GmbH & Co. KGaA.
Citation
Chemistry – A European Journal, 2013, v. 19, p. 13418–13427 How to Cite?
AbstractA series of triarylamine-containing tricarbonyl rhenium(I) complexes, [BrRe(CO)3(N^N)] (N^N=5,5′-bis(N,N-diaryl-4-[ethen-1-yl]-aniline)-2,2′-bipyridine), has been designed and synthesized by introducing a rhenium(I) metal center into a donor-π-acceptor-π-donor structure. All of the complexes showed an intense broad structureless emission band in dichloromethane at around 680–708 nm, which originated from an excited state of intraligand charge transfer (3ILCT) character from the triarylamine to the bipyridine moiety. Upon introduction of the bulky and electron-donating pentaphenylbenzene units attached to the aniline groups, the emission bands were found to be red shifted. The nanosecond transient absorption spectra of two selected complexes were studied, which were suggestive of the formation of an initial charge-separated state. Computational studies have been performed to provide further insight into the origin of the absorption and emission. One of the rhenium(I) complexes has been utilized in the fabrication of organic light-emitting diodes (OLEDs), representing the first example of the realization of deep red to near-infrared rhenium(I)-based OLEDs with an emission extending up to 800 nm.
Persistent Identifierhttp://hdl.handle.net/10722/200484

 

DC FieldValueLanguage
dc.contributor.authorYu, Ten_US
dc.contributor.authorTsang, DPKen_US
dc.contributor.authorAu, KMen_US
dc.contributor.authorLam, SWHen_US
dc.contributor.authorChan, MYen_US
dc.contributor.authorYam, VWWen_US
dc.date.accessioned2014-08-21T06:48:42Z-
dc.date.available2014-08-21T06:48:42Z-
dc.date.issued2013en_US
dc.identifier.citationChemistry – A European Journal, 2013, v. 19, p. 13418–13427en_US
dc.identifier.urihttp://hdl.handle.net/10722/200484-
dc.description.abstractA series of triarylamine-containing tricarbonyl rhenium(I) complexes, [BrRe(CO)3(N^N)] (N^N=5,5′-bis(N,N-diaryl-4-[ethen-1-yl]-aniline)-2,2′-bipyridine), has been designed and synthesized by introducing a rhenium(I) metal center into a donor-π-acceptor-π-donor structure. All of the complexes showed an intense broad structureless emission band in dichloromethane at around 680–708 nm, which originated from an excited state of intraligand charge transfer (3ILCT) character from the triarylamine to the bipyridine moiety. Upon introduction of the bulky and electron-donating pentaphenylbenzene units attached to the aniline groups, the emission bands were found to be red shifted. The nanosecond transient absorption spectra of two selected complexes were studied, which were suggestive of the formation of an initial charge-separated state. Computational studies have been performed to provide further insight into the origin of the absorption and emission. One of the rhenium(I) complexes has been utilized in the fabrication of organic light-emitting diodes (OLEDs), representing the first example of the realization of deep red to near-infrared rhenium(I)-based OLEDs with an emission extending up to 800 nm.en_US
dc.languageengen_US
dc.publisherWiley-VCH Verlag GmbH & Co. KGaA.en_US
dc.relation.ispartofChemistry – A European Journalen_US
dc.titleDeep Red to Near-Infrared Emitting Rhenium(I) Complexes: Synthesis, Characterization, Electrochemistry, Photophysics, and Electroluminescence Studiesen_US
dc.typeArticleen_US
dc.identifier.emailYu, T: ytchem@hku.hken_US
dc.identifier.emailTsang, DPK: tpkd1@hku.hken_US
dc.identifier.emailAu, KM: vonika@hku.hken_US
dc.identifier.emailLam, SWH: chsue@hku.hken_US
dc.identifier.emailChan, MY: chanmym@hku.hken_US
dc.identifier.emailYam, VWW: wwyam@hku.hken_US
dc.identifier.authorityLam, SWH=rp00719en_US
dc.identifier.authorityChan, MY=rp00666en_US
dc.identifier.authorityYam, VWW=rp00822en_US
dc.identifier.hkuros234102en_US
dc.identifier.volume19en_US
dc.identifier.spage13418–13427en_US
dc.identifier.epage13418–13427en_US
dc.publisher.placeWeinheimen_US

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