科研之友
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摘要
The interaction between a series of bidentate, amide-functionalised 8-oxyquinoline receptors and coordinating anions is investigated. Anion recognition properties and conformations were studied by solid-state structures, Hartree-Fock calculations and solution-phase H-1 NMR investigations. Our findings suggest that the amide-oxyquinoline motif coordinates anions and water with a well-defined, consistent geometry involving multiple hydrogen bonds. Solution studies of the neutral receptors reveal the unprotonated oxyquinoline ring to indirectly contribute to anion binding by the adjacent amide NH groups despite being unable to directly participate through hydrogen bonding.
- 出版日期2012
