氢
中子衍射
质子
结构因子
旋转
晶体结构
结晶学
氢的自旋异构体
中子
聚苯乙烯
磷酸氢
极化(电化学)
化学
材料科学
分析化学(期刊)
物理化学
聚合物
磷酸盐
凝聚态物理
核物理学
有机化学
物理
作者
Daisuke Miura,Takayuki Kumada,Yurina Sekine,Ryuhei Motokawa,Hiroshi Nakagawa,Yojiro Oba,Takashi Ohhara,S. Takata,Kosuke Hiroi,Toshiaki Morikawa,Yukihiko Kawamura,Kazuki Ohishi,Jun‐ichi Suzuki,Y. Miyachi,Takahiro Iwata
标识
DOI:10.1107/s1600576721000303
摘要
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.
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