Abstract
The previously proposed model postulating that the incommensurately modulated KNd(MoO4)2 structure can act as a generator of the scheelite family members is validated here by refining the crystal structure of europium molybdate, Eu2(MoO4)3. The initial structural model was derived from the superspace characteristics of KNd(MoO4)2 and the predicted parameters used in the simulation of Eu2(WO4)3. The refinement was performed using both superspace and traditional supercell approaches in superspace group I2/b(αβ0)00 and space group A 2/a, respectively. The results obtained by both approaches are in excellent agreement and coincide with those reported in the literature.
Acknowledgements
The support for this work provided by the Swiss National Science Foundation (Grant 20-113605) is gratefully acknowledged. V.A. Morozov is grateful to the Russian Foundation for Basic Research (Grant 08-03-00593) for financial support. We would like to thank Lukáš Palatinus for useful discussions and suggestions and the Swiss-Norwegian beamline for the provision of synchrotron radiation facilities.