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A rigid molecular balance for measuring face-to-face arene-arene interactions
William R Carroll1, Perry Pellechia, Ken D Shimizu
1Department of Chemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
Abstract:
A new molecular balance was developed to measure face-to-face arene-arene interactions. The balance adopts distinct folded and unfolded conformations due to restricted rotation about a C aryl-N imide bond. In the folded conformer, the rigid bicyclic framework enforces an offset face-to-face geometry to the exclusion of edge-to-face geometries, which was verified by X-ray crystallography. Measurement of the folded to unfolded ratio yields accurate values for the arene-arene interaction in a range of different solvents.
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