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Article: Synthesis, photophysical properties, and molecular aggregation of gold(I) complexes containing carbon-donor ligands

TitleSynthesis, photophysical properties, and molecular aggregation of gold(I) complexes containing carbon-donor ligands
Authors
Keywordsgold
isocyanide
luminescence
n-heterocyclic carbene
nanowires
Issue Date2011
PublisherWiley - V C H Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/en/journals/alphabeticIndex/2451
Citation
Chemistry - An Asian Journal, 2011, v. 6 n. 2, p. 544-553 How to Cite?
AbstractA series of gold(I) complexes with N-heterocyclic carbene (NHC) and acetylide ligands, namely [Au(NHC 1)(C≡CAr)] (NHC 1=1-(9-anthracenylmethyl)-3-(n)-butylimidazol-2-ylidene; 1b-1g), [Au(NHC 2)(C≡CAr)] (NHC 2=1,3-diethylimidazol-2- ylidene; 2b-2f) and [Au(C≡NAr) 2] + (C≡NAr=arylisocyanide; 3a-3f) have been synthesized. At room temperature, most of these gold(I) complexes are emissive in the solid state and in solutions with lifetimes in the nanosecond to submicrosecond regime. The emissions of complexes 1b-1g in solutions are assigned to 1π-π* excited states of the NHC ligand, while that of 2b-2f and 3a-3f are phosphorescent in nature. The intriguing solvatochromism of complex 3a was also investigated. Complexes 1b, 1d, 3a, and 3e aggregate into crystalline nanowires in freshly prepared THF/water dispersions. The X-ray crystallographic data reveal that 1b and 1d possess intermolecular π-π and C-H ... π interactions; while 3a was found to display intermolecular gold(I) ... π interactions. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Persistent Identifierhttp://hdl.handle.net/10722/134356
ISSN
2015 Impact Factor: 4.592
2015 SCImago Journal Rankings: 1.833
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
Hong Kong Research Grants CouncilHKU 7008/09P
University Grants Committee of the Hong Kong SAR, ChinaAoE/P-03/08
Funding Information:

This work was supported by the 'Nanotechnology Research Program' of the University Development Fund of The University of Hong Kong, the Hong Kong Research Grants Council (HKU 7008/09P), and the Area of Excellence Scheme established under the University Grants Committee of the Hong Kong SAR, China (AoE/P-03/08). A. L. F. C. is grateful for a postgraduate studentship from The University of Hong Kong. W. L. thanks The University of Hong Kong for a Research Assistant Professorship and the seed funding.

References
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DC FieldValueLanguage
dc.contributor.authorChow, ALFen_HK
dc.contributor.authorSo, MHen_HK
dc.contributor.authorLu, Wen_HK
dc.contributor.authorZhu, Nen_HK
dc.contributor.authorChe, CMen_HK
dc.date.accessioned2011-06-17T09:18:32Z-
dc.date.available2011-06-17T09:18:32Z-
dc.date.issued2011en_HK
dc.identifier.citationChemistry - An Asian Journal, 2011, v. 6 n. 2, p. 544-553en_HK
dc.identifier.issn1861-4728en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134356-
dc.description.abstractA series of gold(I) complexes with N-heterocyclic carbene (NHC) and acetylide ligands, namely [Au(NHC 1)(C≡CAr)] (NHC 1=1-(9-anthracenylmethyl)-3-(n)-butylimidazol-2-ylidene; 1b-1g), [Au(NHC 2)(C≡CAr)] (NHC 2=1,3-diethylimidazol-2- ylidene; 2b-2f) and [Au(C≡NAr) 2] + (C≡NAr=arylisocyanide; 3a-3f) have been synthesized. At room temperature, most of these gold(I) complexes are emissive in the solid state and in solutions with lifetimes in the nanosecond to submicrosecond regime. The emissions of complexes 1b-1g in solutions are assigned to 1π-π* excited states of the NHC ligand, while that of 2b-2f and 3a-3f are phosphorescent in nature. The intriguing solvatochromism of complex 3a was also investigated. Complexes 1b, 1d, 3a, and 3e aggregate into crystalline nanowires in freshly prepared THF/water dispersions. The X-ray crystallographic data reveal that 1b and 1d possess intermolecular π-π and C-H ... π interactions; while 3a was found to display intermolecular gold(I) ... π interactions. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_HK
dc.languageengen_US
dc.publisherWiley - V C H Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/en/journals/alphabeticIndex/2451en_HK
dc.relation.ispartofChemistry - An Asian Journalen_HK
dc.subjectgolden_HK
dc.subjectisocyanideen_HK
dc.subjectluminescenceen_HK
dc.subjectn-heterocyclic carbeneen_HK
dc.subjectnanowiresen_HK
dc.titleSynthesis, photophysical properties, and molecular aggregation of gold(I) complexes containing carbon-donor ligandsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1861-4728&volume=6&issue=2&spage=544&epage=553&date=2011&atitle=Synthesis,+photophysical+properties,+and+molecular+aggregation+of+gold(I)+complexes+containing+carbon-donor+ligands-
dc.identifier.emailZhu, N: nzhu@hkucc.hku.hken_HK
dc.identifier.emailChe, CM: cmche@hku.hken_HK
dc.identifier.authorityZhu, N=rp00845en_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/asia.201000499en_HK
dc.identifier.pmid20839277-
dc.identifier.scopuseid_2-s2.0-79251509573en_HK
dc.identifier.hkuros185607en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79251509573&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume6en_HK
dc.identifier.issue2en_HK
dc.identifier.spage544en_HK
dc.identifier.epage553en_HK
dc.identifier.isiWOS:000286440600039-
dc.publisher.placeGermanyen_HK
dc.relation.projectInstitute of Molecular Functional Materials-
dc.identifier.scopusauthoridChow, ALF=36463401100en_HK
dc.identifier.scopusauthoridSo, MH=9275915300en_HK
dc.identifier.scopusauthoridLu, W=55277832700en_HK
dc.identifier.scopusauthoridZhu, N=7201449530en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK

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