Journal
SUPRAMOLECULAR CHEMISTRY
Volume 19, Issue 8, Pages 599-611Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10610270701297418
Keywords
di-palladium complexes; anion receptors; metalloreceptors; binding constants
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A series of di-palladium complexes with thiolato ligands containing urea groups for hydrogen bonding have been prepared. Three of these complexes have been structurally characterised by X-ray crystallography showing some interesting supramolecular interactions between 31 the metal complexes and counter-anions. P NMR solution studies have been carried out to gain some insight into the different conformations of the complexes in solution. To support the experimental findings, computational studies have been performed demonstrating the preference for one of the two conformers in the presence of the appropriate solvent and anion. The anion-binding properties of two of these metalloreceptors have been studied by H-1 NMR spectroscopy. Binding constants (in DMSO) between the receptors and specific anions (e.g., [H2PO4](-)) are in the order of 10(3).
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