Abstract
The synthesis and spectroscopic studies of a dicopper(II) double helicate capable of binding anions is described. X-Ray crystallographic analysis of three anion variations of the complex have shown that the helicate is capable of accommodating anions with an approximate volume of 0.09 nm(3) and smaller. ESI-MS revealed that the supramolecular complexes retain the 2 : 2 ligand : metal cluster in solution. Spectrometric analysis has shown the complex is capable of binding anions in a 1 : 1 ratio of helicate to anion, in the order SO42- > HPO42- > ClO4- similar to BF4- similar to NO3-. We demonstrate that coordination to the metal centre, H-bonding and electrostatic interactions all play a role in encapsulating the anions.
Original language | English |
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Pages (from-to) | 2936-2941 |
Number of pages | 6 |
Journal | Dalton Transactions |
Volume | 39 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2010 |