title: Cationic CHπ interactions as a function of solvation.
abstract: The energy (ΔG) of a cationic CHπ interaction was measured experimentally through the conformational studies of new molecular torsion balances using proton NMR spectroscopy. Each of the molecular balance adopted folded and unfolded conformations for which the ratio of the conformational equilibrium (i.e., folded/unfolded ratio) provided a quantitative measure of the ΔG as a function of solvation. An excellent linear solvation energy relationship between the ΔG values and the Hunter's solvent hydrogen-bond parameters (αsand βs) revealed that electrostatic interaction is the physical origin of the observed conformational preferences in solution.
authors: Department of Chemistry & Physics, State University of New York, 223 Store Hill Road, Old Westbury, NY 11568, USA. emenikeb@oldwestbury.edu.
authors: Bright U
authors: BU
authors: Emenike
authors: Department of Chemistry & Physics, State University of New York, 223 Store Hill Road, Old Westbury, NY 11568, USA. emenikeb@oldwestbury.edu.
authors: Sara N
authors: SN
authors: Bey
authors: Department of Chemistry & Physics, State University of New York, 223 Store Hill Road, Old Westbury, NY 11568, USA. emenikeb@oldwestbury.edu.
authors: Ronald A
authors: RA
authors: Spinelle
authors: Department of Chemistry & Physics, State University of New York, 223 Store Hill Road, Old Westbury, NY 11568, USA. emenikeb@oldwestbury.edu.
authors: Jacob T
authors: JT
authors: Jones
authors: Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA.
authors: Barney
authors: B
authors: Yoo
authors: Department of Chemistry, Purdue University, West Lafayette, IN 47907-2084, USA.
authors: Matthias
authors: M
authors: Zeller