Bulletin of the Chemical Society of Japan2021，Vol.94Issue(12) ：7.DOI:10.1246/bcsj.20210315

Direct Observation of Scattering Angle Dependence of the Inelasticity Effect on the Interference Term Obtained from Time-of-Flight Neutron Diffraction Experiments

Kameda, Yasuo Tsutsui, Kana Amo, Yuko Usuki, Takeshi Ikeda, Kazutaka Otomo, Toshiya
Bulletin of the Chemical Society of Japan2021，Vol.94Issue(12) ：7.DOI:10.1246/bcsj.20210315
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  • NSTL
  • Chemical Soc Japan

Direct Observation of Scattering Angle Dependence of the Inelasticity Effect on the Interference Term Obtained from Time-of-Flight Neutron Diffraction Experiments

Kameda, Yasuo 1Tsutsui, Kana 1Amo, Yuko 1Usuki, Takeshi 1Ikeda, Kazutaka 2Otomo, Toshiya2
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作者信息

  • 1. Yamagata Univ
  • 2. KEK
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Abstract

Scattering angle dependence has been experimentally examined for inelasticity effect on the intramolecular interference term observed from the time-of-flight neutron diffraction method. Internuclear distance and its root-mean-square displacement for liquid pure D2O, C6D6 and CCl4, have been determined from the least squares fitting analysis of the observed total interference term in the high-Q region. Although "apparent shrinkage" in the intramolecular distance has been observed obviously for the light nuclei pair at large scattering angle data (2 theta > ca. 70 degrees), it has been revealed that the apparent shrinkage in the D center dot center dot center dot D distance for D2O and C6D6, in which the inelasticity effect is expected to be most significant, is found to be suppressed well within ca. 1% for the data observed for the scattering angle below ca. 2 theta < ca. 50 degrees. Structural parameters determined have been compared with those determined from the gas-phase electron diffraction method in order to obtain insight of the effect of intermolecular interaction to molecular geometry in the liquid phase.

Key words

Inelasticity effect/Neutron diffraction/Molecular structure/CARBON-TETRACHLORIDE/INTRAMOLECULAR STRUCTURE/ELECTRON-DIFFRACTION/RECOIL CORRECTIONS/LIQUID STRUCTURE/WATER MOLECULE

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出版年

2021
Bulletin of the Chemical Society of Japan

Bulletin of the Chemical Society of Japan

CCREI
ISSN：0009-2673
被引量4
参考文献量38
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