Crystal structure of the high-temperature solid phases of choline tetrafluoroborate and iodide

Hiroyuki Ishida, Hiroshi Ono, Ryuichi Ikeda

研究成果査読

2 被引用数 (Scopus)

抄録

The crystal structure of the highest- and second highest-temperature solid phases of choline tetrafluoroborate and iodide was determined by X-ray powder diffraction. The structure in the highest-temperature phase of both salts is NaCl-type cubic (a = 10.16 (2) Å, Z = 4 for tetrafluoroborate; a = 10.08 (2) Å, Z = 4 for iodide). The second highest-lemperature phase of tetrafluoroborate and iodide is CsCl-lype cubic (a = 6.198 (6) Å and Z = 1) and tetragonal (a = 8.706 (2) Å, c = 6.144 (6) Å, and Z = 2), respectively. DSC was carried out for the iodide, where the presence of three solid-solid phase transitions was confirmed. Enthalpy and entropy changes of these transitions were evaluated.

本文言語English
ページ(範囲)679-680
ページ数2
ジャーナルZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
52
8-9
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 数理物理学
  • 物理学および天文学一般
  • 物理化学および理論化学

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