Abstract

The molecular conformation of N-(1-octyl)-D-gluconamide in its helical micellar fibers is determined. The all-anti conformation in three-dimensional crystals and the 4 G + conformation in DMSO solution served as references. Comparisons of 13 C CP/MAS solid-state NMR spectra of head-to-tail and tail-to-tail oriented crystals led to a 2 G - conformation for the gluconamide head groups and an all-anti conformation for the alkyl chains in the fibers. The latter result is confirmed by powder X-ray diffraction data and infrared spectra

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