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Published on: August 18, 2017
Determination of the chiral structure of [Formula: see text] using anomalous x-ray scattering near the Cs K
1Institute of Applied Physics, University of Tsukuba, Tsukuba 305, Japan.
Abstract:
A structural study of [Formula: see text], grown from aqueous solution, was performed using anomalous x-ray scattering near the Cs K absorption edge to determine an absolute configuration of constituent atoms. The sense of the helical structure of the [Formula: see text] chain was found to be predominantly right-handed through a comparison of observed Bragg Bijvoet ratios with calculated ones. Assuming that [Formula: see text] consists of the two domains (i.e. right- and left-handed helices), we estimate that the volume fraction for the right-handed helix is [Formula: see text].
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