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Article: Coordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ions

TitleCoordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ions
Authors
KeywordsAmmonium ions binding
Chiral ligand
Copper complex
Dipyridine ligand
Metal binding
Silver complex
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/poly
Citation
Polyhedron, 2011, v. 30 n. 6, p. 1149-1156 How to Cite?
Abstract
New chiral dipyridine ligands with an axially unfixed 1,1′-biphenyl bridge were prepared via homocoupling of bromophenyl pyridines. The conformeric ratios of the free ligands in solution and their coordination properties towards metal ions were studied by NMR spectroscopy. X-Ray crystallography of the silver(I) and copper(I) complexes showed 1:1 metal to ligand complexes and S planar chirality. Interestingly, the biphenyl ligands show a 1:2 stepwise binding towards most ammonium ions tested with strong fluorescence enhancement, but a selectively 1:1 binding towards l-ornithine methyl ester hydrochloride with no fluorescence enhancement. © 2011 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/139000
ISSN
2013 Impact Factor: 2.047
2013 SCImago Journal Rankings: 0.570
ISI Accession Number ID
Funding AgencyGrant Number
University Grants Committee of the Hong Kong Special Administrative Region, ChinaAoE/P-03/08
City University of Hong Kong7002607
Funding Information:

The work described in this paper was supported by a grant from the University Grants Committee of the Hong Kong Special Administrative Region, China (Project No. [AoE/P-03/08]) and the City University of Hong Kong (Project No.7002607).

References
Grants

 

Author Affiliations
  1. The University of Hong Kong
  2. City University of Hong Kong
  3. Peking University
DC FieldValueLanguage
dc.contributor.authorSham, KCen_HK
dc.contributor.authorLee, CSen_HK
dc.contributor.authorChan, KYen_HK
dc.contributor.authorYiu, SMen_HK
dc.contributor.authorWong, WTen_HK
dc.contributor.authorKwong, HLen_HK
dc.date.accessioned2011-09-23T05:43:54Z-
dc.date.available2011-09-23T05:43:54Z-
dc.date.issued2011en_HK
dc.identifier.citationPolyhedron, 2011, v. 30 n. 6, p. 1149-1156en_HK
dc.identifier.issn0277-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139000-
dc.description.abstractNew chiral dipyridine ligands with an axially unfixed 1,1′-biphenyl bridge were prepared via homocoupling of bromophenyl pyridines. The conformeric ratios of the free ligands in solution and their coordination properties towards metal ions were studied by NMR spectroscopy. X-Ray crystallography of the silver(I) and copper(I) complexes showed 1:1 metal to ligand complexes and S planar chirality. Interestingly, the biphenyl ligands show a 1:2 stepwise binding towards most ammonium ions tested with strong fluorescence enhancement, but a selectively 1:1 binding towards l-ornithine methyl ester hydrochloride with no fluorescence enhancement. © 2011 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/polyen_HK
dc.relation.ispartofPolyhedronen_HK
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in <Journal title>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION, [VOL#, ISSUE#, (DATE)] DOI#-
dc.subjectAmmonium ions bindingen_HK
dc.subjectChiral liganden_HK
dc.subjectCopper complexen_HK
dc.subjectDipyridine liganden_HK
dc.subjectMetal bindingen_HK
dc.subjectSilver complexen_HK
dc.titleCoordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ionsen_HK
dc.typeArticleen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.poly.2011.01.017en_HK
dc.identifier.scopuseid_2-s2.0-79953206568en_HK
dc.identifier.hkuros195746en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79953206568&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume30en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1149en_HK
dc.identifier.epage1156en_HK
dc.identifier.isiWOS:000290357100036-
dc.publisher.placeNetherlandsen_HK
dc.relation.projectInstitute of Molecular Functional Materials-
dc.identifier.scopusauthoridSham, KC=24538178700en_HK
dc.identifier.scopusauthoridLee, CS=35201187300en_HK
dc.identifier.scopusauthoridChan, KY=36915709900en_HK
dc.identifier.scopusauthoridYiu, SM=43462142100en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK
dc.identifier.scopusauthoridKwong, HL=35569416300en_HK
dc.identifier.citeulike8800130-

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