Low-temperature phases of dicalcium barium hexakis(propanoate)

0547502 - FZÚ 2022 RIV US eng J - Journal Article
Fábry, Jan - Dušek, Michal
Low-temperature phases of dicalcium barium hexakis(propanoate).
Acta Crystallographica Section C-Structural Chemistry. Roč. 77, č. 11 (2021), s. 683-690. ISSN 2053-2296. E-ISSN 2053-2296
R&D Projects: GA ČR GX19-28594X
Institutional support: RVO:68378271
Keywords : barium dicalcium propanoate * positional disorder * first-order phase transition * second-order phase transition * crystal structure
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.184, year: 2021
Method of publishing: Limited access
https://doi.org/10.1107/S205322962101024X

The structure determinations of phases (II) and (III) of barium dicalcium hexakis(propanoate) {or poly[hexa- 4-propanoato-bariumdicalcium], [BaCa2- (C3H5O2)6]n} are reported at 240 and 130 K. The change in the environment of Ba2+ of the phase transition (I)-> (II) is responsible for the first order character of the phase transition. The second order character of the phase transition (II)->(III) is due to the ordering of the disordered ethyl chains.
Permanent Link: http://hdl.handle.net/11104/0323881