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Article: Na+ and Ca2+ ion selective pyridylcarboxylate rings of Pd(II) and Pt(II)

TitleNa+ and Ca2+ ion selective pyridylcarboxylate rings of Pd(II) and Pt(II)
Authors
Issue Date2009
Citation
Dalton Transactions, 2009, n. 29, p. 5637-5646 How to Cite?
AbstractA series of dinuclear Pd(II) and Pt(II) with central rectangular cavities have been self-assembled using pyridyl carboxylates as spacers and phosphines [1,1′-bis(diphenylphosphino)ferrocene (dppf) and triphenylphosphines] as supporting ligands. Some of these function as metallacrowns by capturing adventitious alkali or alkali earth metals ions. Two of the Pt(II) rings bind selectively to Na+ whereas the Pd(II) rings prefer Ca2+. Such endocyclic association with the metal ion is facilitated by the converging carbonyl pendants and supported by coordinated triflates. Affinity and selectivity are achieved through stereo-conformational control of the pendant carbonyls and the ring which are isomerically dependent on the spacer. These intermetallic complexes are characterized by X-ray single-crystal crystallography and solution spectroscopy (NMR and ESI-MS). A varied range of local geometries of Na+ and Ca2+ are revealed. © The Royal Society of Chemistry 2009.
Persistent Identifierhttp://hdl.handle.net/10722/219607
ISSN
2015 Impact Factor: 4.177
2015 SCImago Journal Rankings: 1.404

 

DC FieldValueLanguage
dc.contributor.authorTeo, Peili-
dc.contributor.authorKoh, L. L.-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:57:31Z-
dc.date.available2015-09-23T02:57:31Z-
dc.date.issued2009-
dc.identifier.citationDalton Transactions, 2009, n. 29, p. 5637-5646-
dc.identifier.issn1477-9226-
dc.identifier.urihttp://hdl.handle.net/10722/219607-
dc.description.abstractA series of dinuclear Pd(II) and Pt(II) with central rectangular cavities have been self-assembled using pyridyl carboxylates as spacers and phosphines [1,1′-bis(diphenylphosphino)ferrocene (dppf) and triphenylphosphines] as supporting ligands. Some of these function as metallacrowns by capturing adventitious alkali or alkali earth metals ions. Two of the Pt(II) rings bind selectively to Na+ whereas the Pd(II) rings prefer Ca2+. Such endocyclic association with the metal ion is facilitated by the converging carbonyl pendants and supported by coordinated triflates. Affinity and selectivity are achieved through stereo-conformational control of the pendant carbonyls and the ring which are isomerically dependent on the spacer. These intermetallic complexes are characterized by X-ray single-crystal crystallography and solution spectroscopy (NMR and ESI-MS). A varied range of local geometries of Na+ and Ca2+ are revealed. © The Royal Society of Chemistry 2009.-
dc.languageeng-
dc.relation.ispartofDalton Transactions-
dc.titleNa+ and Ca2+ ion selective pyridylcarboxylate rings of Pd(II) and Pt(II)-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1039/b821379h-
dc.identifier.scopuseid_2-s2.0-70249116462-
dc.identifier.issue29-
dc.identifier.spage5637-
dc.identifier.epage5646-
dc.identifier.eissn1477-9234-

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