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Journal of the Chemical Society, Chemical Communications


Journal of the Chemical Society, Chemical Communications was published between 1972 - 1995.

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Paper

J. Chem. Soc., Chem. Commun., 1995, 2513 - 2514, DOI: 10.1039/C39950002513


Closed-shell ion pair aggregation in non-polar solvents characterized by NMR diffusion measurements

Susan Sondej Pochapsky, Huaping Mo and Thomas C. Pochapsky


Closed-shell ion pairs, formed by tetrabutylammonium chloride, aggregate in C2HCl3 solution; stimulated-echo NMR experiments incorporating pulsed field gradients yielded diffusion coefficients for the aggregates and comparison of aggregate diffusion with that of an internal standard of similar size and shape (Bu4Si) was used to determine the extent of aggregation; temperature and concentration effects indicate that aggregation is primarily entropy-driven.