Crystal structures of ｛P(CH_3)_4｝_2CuCl_4 in phases I, II and III
Journal of the Physical Society of Japan Volume 69 Issue 11
Page 3581-3588
published_at 2000
Title
Crystal structures of ｛P(CH_3)_4｝_2CuCl_4 in phases I, II and III
Creators
Nishijima Yasuo
Creator Keywords
phase transition
incommensurate crystal
structure analysis
｛P(CH_3)_4｝_2CuCl_4
The crystal structures of ｛P(CH_3)_4｝_2CuCl_4 in phase I, II and III are determined by single crystal X-ray diffractometry. The phase I is isomorphous to the normal phase of ｛N(CH_3)_4｝_2ZnCl_4-type crystal, though the CuCl_4 tetrahedron is fairly distorted from the regular tetrahedral shape. The incommensurate phase II is refined by the use of the 4-dimensional superspace group. The second harmonics of the modulation is comparably strong as the primary modulation at 360 K. The incommensurate structure is compared with the room temperature phase III, where the cell dimension along the c axis is tripled. The structural transition sequence is discussed in connection to the size of tetrahedral monovalent cation.
Languages
eng
Resource Type
journal article
Publishers
The Physical Society of Japan
Date Issued
2000
Rights
Copyright c (2002)The Physical Society of Japan()
File Version
Author’s Original
Access Rights
open access
Relations
[ISSN]0031-9015
[NCID]AA00704814
[isVersionOf]
[URI]http://www.ipap.jp/jpsj/index.html
Schools
大学院理工学研究科（理学）