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Article: Phosphorescent molecular tweezers based on alkynylplatinum(II) terpyridine system: turning on of NIR emission via heterologous Pt...M interactions (M = PtII, PdII, AuIII and AuI)

TitlePhosphorescent molecular tweezers based on alkynylplatinum(II) terpyridine system: turning on of NIR emission via heterologous Pt...M interactions (M = PtII, PdII, AuIII and AuI)
Authors
KeywordsAlkynylplatinum
Building blockes
Complex 1
Double salts
Guest molecules
Issue Date2012
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/publishing/journals/sc/About.asp
Citation
Chemical Science, 2012, v. 3 n. 4, p. 1185-1191 How to Cite?
Abstract
A novel molecular tweezers-type complex 1, based on a phosphorescent cationic alkynylplatinum(II) terpyridine building block, has been synthesized and characterized by NMR, mass spectroscopy, elemental analysis and X-ray diffraction study. Host-guest chemistry of the host complex 1 and various guest metal complexes with different ligands, charges and/or metal centres has been investigated. Various metal complexes including the negatively charged platinum complexes can interact with 1 in a 1:1 manner, which is in contrast to the commonly observed formation of insoluble platinum(II) double salts in a one-dimensional infinite chain such as the Magnus's green salt. Upon addition of guest molecules to 1 in CH 2Cl 2 solution, spectroscopic changes with new absorptions and emissions in the lower-energy region were observed as a result of significant metal-metal, π-π, and electrostatic interactions. 1H NMR titration and 2D NMR studies suggest that the host-guest interaction is predominantly in the sandwiched association mode of the molecular tweezers. This journal is © 2012 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/159358
ISSN
2013 Impact Factor: 8.601
ISI Accession Number ID

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorTanaka, Yen_US
dc.contributor.authorWong, KMCen_US
dc.contributor.authorYam, VWWen_US
dc.date.accessioned2012-08-16T05:48:50Z-
dc.date.available2012-08-16T05:48:50Z-
dc.date.issued2012en_US
dc.identifier.citationChemical Science, 2012, v. 3 n. 4, p. 1185-1191en_US
dc.identifier.issn2041-6520-
dc.identifier.urihttp://hdl.handle.net/10722/159358-
dc.description.abstractA novel molecular tweezers-type complex 1, based on a phosphorescent cationic alkynylplatinum(II) terpyridine building block, has been synthesized and characterized by NMR, mass spectroscopy, elemental analysis and X-ray diffraction study. Host-guest chemistry of the host complex 1 and various guest metal complexes with different ligands, charges and/or metal centres has been investigated. Various metal complexes including the negatively charged platinum complexes can interact with 1 in a 1:1 manner, which is in contrast to the commonly observed formation of insoluble platinum(II) double salts in a one-dimensional infinite chain such as the Magnus's green salt. Upon addition of guest molecules to 1 in CH 2Cl 2 solution, spectroscopic changes with new absorptions and emissions in the lower-energy region were observed as a result of significant metal-metal, π-π, and electrostatic interactions. 1H NMR titration and 2D NMR studies suggest that the host-guest interaction is predominantly in the sandwiched association mode of the molecular tweezers. This journal is © 2012 The Royal Society of Chemistry.-
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/publishing/journals/sc/About.aspen_US
dc.relation.ispartofChemical Scienceen_US
dc.subjectAlkynylplatinum-
dc.subjectBuilding blockes-
dc.subjectComplex 1-
dc.subjectDouble salts-
dc.subjectGuest molecules-
dc.titlePhosphorescent molecular tweezers based on alkynylplatinum(II) terpyridine system: turning on of NIR emission via heterologous Pt...M interactions (M = PtII, PdII, AuIII and AuI)en_US
dc.typeArticleen_US
dc.identifier.emailTanaka, Y: ytanaka@hku.hken_US
dc.identifier.emailWong, KMC: wongmc@hku.hken_US
dc.identifier.emailYam, VWW: wwyam@hku.hken_US
dc.identifier.authorityWong, MC=rp00809en_US
dc.identifier.authorityYam, VWW=rp00822en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c2sc00935h-
dc.identifier.scopuseid_2-s2.0-84863419008-
dc.identifier.hkuros204726en_US
dc.identifier.volume3en_US
dc.identifier.issue4-
dc.identifier.spage1185en_US
dc.identifier.epage1191en_US
dc.identifier.isiWOS:000301122000032-
dc.publisher.placeUnited Kingdom-

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