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Bis(trimethylammonium) tetrachloromercurate(II) at 343K

Title data

Amami, Mongi ; van Smaalen, Sander ; Ben Salah, Abdelhamid:
Bis(trimethylammonium) tetrachloromercurate(II) at 343K.
In: Acta Crystallographica Section E. Vol. 58 (2002) Issue 8 . - m416-m419.
ISSN 1600-5368
DOI: https://doi.org/10.1107/S160053680201214X

Official URL: Volltext

Abstract in another language

In order to investigate a possible phase transition at 324 K in the title compound, (NHMe3)2[HgCl4], the crystal structures at 295 and 343 K have been determined, using restrictions of the non-crystallographic site symmetry of the tri­methyl­ammonium (TrMA) ions. The hydrogen-bond network, namely N-H...Cl, undergoes a considerable change, by a 38° rotation of one of the TrMA cations about the N-H bond axis. This transition is shown to be a non-symmetry-breaking structural transition, which corresponds to a gradual loss of the orientational order of the TrMA cations.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 21 Mar 2016 10:34
Last Modified: 21 Mar 2016 10:34
URI: https://eref.uni-bayreuth.de/id/eprint/31925