Article: Coordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ions
| Title | Coordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ions | ||||||
|---|---|---|---|---|---|---|---|
| Authors | Sham, KC2 Lee, CS2 3 Chan, KY2 Yiu, SM2 Wong, WT1 Kwong, HL2 | ||||||
| Keywords | Ammonium ions binding Chiral ligand Copper complex Dipyridine ligand Metal binding Silver complex | ||||||
| Issue Date | 2011 | ||||||
| Publisher | Elsevier 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?] DOI: http://dx.doi.org/10.1016/j.poly.2011.01.017 | ||||||
| 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. | ||||||
| ISSN | 0277-5387 2011 Impact Factor: 2.057 2011 SCImago Journal Rankings: 0.100 | ||||||
| DOI | http://dx.doi.org/10.1016/j.poly.2011.01.017 | ||||||
| ISI Accession Number ID | WOS:000290357100036
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 | References in Scopus | ||||||
| Grants | Institute of Molecular Functional Materials |
| dc.contributor.author | Sham, KC | ||||||
|---|---|---|---|---|---|---|---|
| dc.contributor.author | Lee, CS | ||||||
| dc.contributor.author | Chan, KY | ||||||
| dc.contributor.author | Yiu, SM | ||||||
| dc.contributor.author | Wong, WT | ||||||
| dc.contributor.author | Kwong, HL | ||||||
| dc.date.accessioned | 2011-09-23T05:43:54Z | ||||||
| dc.date.available | 2011-09-23T05:43:54Z | ||||||
| dc.date.issued | 2011 | ||||||
| dc.description.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. | ||||||
| dc.description.grant | Institute of Molecular Functional Materials | ||||||
| dc.description.grantcode | 101180 | ||||||
| dc.description.nature | Link_to_subscribed_fulltext | ||||||
| dc.identifier.citation | Polyhedron, 2011, v. 30 n. 6, p. 1149-1156 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.poly.2011.01.017 | ||||||
| dc.identifier.citeulike | 8800130 | ||||||
| dc.identifier.doi | http://dx.doi.org/10.1016/j.poly.2011.01.017 | ||||||
| dc.identifier.epage | 1156 | ||||||
| dc.identifier.hkuros | 195746 | ||||||
| dc.identifier.isi | WOS:000290357100036
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). | ||||||
| dc.identifier.issn | 0277-5387 2011 Impact Factor: 2.057 2011 SCImago Journal Rankings: 0.100 | ||||||
| dc.identifier.issue | 6 | ||||||
| dc.identifier.scopus | eid_2-s2.0-79953206568 | ||||||
| dc.identifier.spage | 1149 | ||||||
| dc.identifier.uri | http://hdl.handle.net/10722/139000 | ||||||
| dc.identifier.volume | 30 | ||||||
| dc.language | eng | ||||||
| dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/poly | ||||||
| dc.publisher.place | Netherlands | ||||||
| dc.relation.ispartof | Polyhedron | ||||||
| dc.relation.references | References in Scopus | ||||||
| dc.rights | NOTICE: this is the author’s version of a work that was accepted for publication in | ||||||
| dc.subject | Ammonium ions binding | ||||||
| dc.subject | Chiral ligand | ||||||
| dc.subject | Copper complex | ||||||
| dc.subject | Dipyridine ligand | ||||||
| dc.subject | Metal binding | ||||||
| dc.subject | Silver complex | ||||||
| dc.title | Coordination properties of axially unfixed chiral dipyridine ligands towards metal and ammonium ions | ||||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- City University of Hong Kong
- Peking University