DGK conference 2022

Pseudosymmetry in Cesium Orthotantalate(V)

15 Mar 2022, 16:15

2h

Poster Structural Chemistry & New crystal structures Postersession

Speaker

Irina Zaytseva (LMU München)

Description

A number of crystal structures of orthometalate A₃MO₄ reported in a cubic symmetry may be erroneously assigned. They belong to the orthorhombic K₃NO₄ structure type (space group Pnma). On the new compounds Cs₃TaO₄ and Cs₃NbO₄ we show parameters responsible for the wrong assignment, give an oversight over the known phases and discuss examples for structural phase transitions to a cubic modification.

Presentation materials

IrinaAbstract.pdf