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Article: Structural Basis for Vapoluminescent Organoplatinum Materials Derived from Noncovalent Interactions as Recognition Components

TitleStructural Basis for Vapoluminescent Organoplatinum Materials Derived from Noncovalent Interactions as Recognition Components
Authors
KeywordsAlkyne ligands
Inclusion compounds
Noncovalent interactions
Platinum
Vapoluminescence
Issue Date2003
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, 2003, v. 9 n. 24, p. 6155-6166 How to Cite?
AbstractThe spectroscopic properties and crystal structures of a series of platinum(II) complexes bearing functionalized σ-alkynyl groups, namely [(tBu 2bpy)Pt(C≡CAr) 2] (tBu 2bpy = 4,4′-bis-tert-butyl-2,2′-bipyridine, Ar = 4-pyridyl, 1; 3-pyridyl, 2; 2-pyridyl, 3; 4-ethynylpyridyl, 4; 2-thienyl, 5; pentafluorophenyl, 6) have been studied. Solid-state emissions of 1 and 6 are dependent on their crystallinity. Reversible and selective vapoluminescence was observed for 1 and 6 in the presence of chlorocarbon vapors. For solid 1, dramatic enhancement of green luminescence is observed upon sorption of CH 2Cl 2 or CHCl 3 vapor. The excimeric orange emission for solid 6 is switched to monomeric green emission upon exposure to CH 2Cl 2 vapor. The luminescent responses of a thin film of 1 towards various organic vapors have also been examined. In the crystallographically determined structure of 1·CH 2Cl 2, the bis(acetylide) moiety acts as the receptor berth for a CH 2Cl 2 molecule through concerted C-H⋯π(C≡C) interactions, while Clμellip;Cl interactions connect the CH 2Cl 2 molecules into infinite linear chains. The observed crystal lattices are arranged into scaffolds of varying porosity by weak C-H⋯N(py) (1·CH 2Cl 2, 1·CH 3CN, 4·DMF) and C-H⋯F-C (6, 6·CH 3CN) interactions. The correlation between the crystal structures of 1·CH 2Cl 2, 1·CH 3CN, 2, 4·DMF, 5, 6, and 6·CH 3CN and their vapoluminescence suggests that weak nonconventional hydrogen-bonding interactions preside over the reversible sensing and signalling processes.
Persistent Identifierhttp://hdl.handle.net/10722/70021
ISSN
2015 Impact Factor: 5.771
2015 SCImago Journal Rankings: 2.323
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLu, Wen_HK
dc.contributor.authorChan, MCWen_HK
dc.contributor.authorZhu, Nen_HK
dc.contributor.authorChe, CMen_HK
dc.contributor.authorHe, Zen_HK
dc.contributor.authorWong, KYen_HK
dc.date.accessioned2010-09-06T06:18:58Z-
dc.date.available2010-09-06T06:18:58Z-
dc.date.issued2003en_HK
dc.identifier.citationChemistry - A European Journal, 2003, v. 9 n. 24, p. 6155-6166en_HK
dc.identifier.issn0947-6539en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70021-
dc.description.abstractThe spectroscopic properties and crystal structures of a series of platinum(II) complexes bearing functionalized σ-alkynyl groups, namely [(tBu 2bpy)Pt(C≡CAr) 2] (tBu 2bpy = 4,4′-bis-tert-butyl-2,2′-bipyridine, Ar = 4-pyridyl, 1; 3-pyridyl, 2; 2-pyridyl, 3; 4-ethynylpyridyl, 4; 2-thienyl, 5; pentafluorophenyl, 6) have been studied. Solid-state emissions of 1 and 6 are dependent on their crystallinity. Reversible and selective vapoluminescence was observed for 1 and 6 in the presence of chlorocarbon vapors. For solid 1, dramatic enhancement of green luminescence is observed upon sorption of CH 2Cl 2 or CHCl 3 vapor. The excimeric orange emission for solid 6 is switched to monomeric green emission upon exposure to CH 2Cl 2 vapor. The luminescent responses of a thin film of 1 towards various organic vapors have also been examined. In the crystallographically determined structure of 1·CH 2Cl 2, the bis(acetylide) moiety acts as the receptor berth for a CH 2Cl 2 molecule through concerted C-H⋯π(C≡C) interactions, while Clμellip;Cl interactions connect the CH 2Cl 2 molecules into infinite linear chains. The observed crystal lattices are arranged into scaffolds of varying porosity by weak C-H⋯N(py) (1·CH 2Cl 2, 1·CH 3CN, 4·DMF) and C-H⋯F-C (6, 6·CH 3CN) interactions. The correlation between the crystal structures of 1·CH 2Cl 2, 1·CH 3CN, 2, 4·DMF, 5, 6, and 6·CH 3CN and their vapoluminescence suggests that weak nonconventional hydrogen-bonding interactions preside over the reversible sensing and signalling processes.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.subjectAlkyne ligandsen_HK
dc.subjectInclusion compoundsen_HK
dc.subjectNoncovalent interactionsen_HK
dc.subjectPlatinumen_HK
dc.subjectVapoluminescenceen_HK
dc.titleStructural Basis for Vapoluminescent Organoplatinum Materials Derived from Noncovalent Interactions as Recognition Componentsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0947-6539&volume=9&spage=6155&epage=6166&date=2003&atitle=Structural+basis+for+vapoluminescent+organoplatinum+materials+derived+from+noncovalent+interactions+as+recognition+componentsen_HK
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/chem.200305322en_HK
dc.identifier.scopuseid_2-s2.0-0347992922en_HK
dc.identifier.hkuros91174en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0347992922&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume9en_HK
dc.identifier.issue24en_HK
dc.identifier.spage6155en_HK
dc.identifier.epage6166en_HK
dc.identifier.isiWOS:000187425200020-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridLu, W=55277832700en_HK
dc.identifier.scopusauthoridChan, MCW=7402598116en_HK
dc.identifier.scopusauthoridZhu, N=7201449530en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK
dc.identifier.scopusauthoridHe, Z=55475771300en_HK
dc.identifier.scopusauthoridWong, KY=7404760030en_HK

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