Please use this identifier to cite or link to this item:
|Title:||Na+ and Ca2+ ion selective pyridylcarboxylate rings of Pd(II) and Pt(II)||Authors:||Teo, P.
|Issue Date:||2009||Citation:||Teo, P., Koh, L.L., Hor, T.S.A. (2009). Na+ and Ca2+ ion selective pyridylcarboxylate rings of Pd(II) and Pt(II). Dalton Transactions (29) : 5637-5646. ScholarBank@NUS Repository. https://doi.org/10.1039/b821379h||Abstract:||A 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.||Source Title:||Dalton Transactions||URI:||http://scholarbank.nus.edu.sg/handle/10635/94341||ISSN:||14779226||DOI:||10.1039/b821379h|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
WEB OF SCIENCETM
checked on Dec 3, 2019
checked on Nov 30, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.