In:
Journal of Applied Crystallography, International Union of Crystallography (IUCr), Vol. 54, No. 2 ( 2021-04-01), p. 454-460
Kurzfassung:
A spin-contrast-variation neutron powder diffractometry technique that extracts the structure factor of hydrogen atoms, i.e. the contribution of hydrogen atoms to a crystal's structure factor, has been developed. Crystals of L-glutamic acid were dispersed in a D-polystyrene matrix containing 4-methacryloyloxy-2,2,6,6,-tetramethyl-1-piperidinyloxy to polarize their proton spins dynamically. The intensities of the diffraction peaks of the sample changed according to the proton polarization, and the structure factor of the hydrogen atoms was extracted from the proton-polarization-dependent intensities. This technique is expected to enable analyses of the structures of hydrogen-containing materials that are difficult to determine with conventional powder diffractometry.
Materialart:
Online-Ressource
ISSN:
1600-5767
DOI:
10.1107/S1600576721000303
DOI:
10.1107/S1600576721000303/kc5122sup1.pdf
Sprache:
Unbekannt
Verlag:
International Union of Crystallography (IUCr)
Publikationsdatum:
2021
ZDB Id:
2020879-0