The role of the counteranion in the cation-pi interaction |
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| Authors: | Hunter Christopher A Low Caroline M R Rotger Carmen Vinter Jeremy G Zonta Cristiano |
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| Institution: | Centre for Chemical Biology, Krebs Institute for Biomolecular Science, Department of Chemistry, University of Sheffield, Sheffield, UK S3 7HF. C.Hunter@Sheffield.ac.uk |
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| Abstract: | Chemical double mutant cycles have been used to quantify cation-pi interactions in chloroform as a function of the nature of the counteranion. The cation-pi interaction is -2.5 +/- 0.4 kJ mol(-1) and independent of the anion, even though the overall stability of the complexes varies by an order of magnitude due to competition of the anion for alternative binding sites. |
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