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Flux Growth and X‐Ray Diffraction Study of the Crystal Structure of Ca/SrMoO 4 Single Crystals
Author(s) -
Zhang Shoubao,
Yu Haitian,
Han Shuo,
Ni Meiyan,
Liu Xiaoli,
Zhao Hongyan,
Zhou Shaoshuai
Publication year - 2020
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201900206
Subject(s) - x ray crystallography , diffraction , flux (metallurgy) , crystallography , chemistry , crystal structure , single crystal , tetrahedron , crystal (programming language) , crystal growth , inorganic compound , powder diffraction , mineralogy , analytical chemistry (journal) , physics , optics , programming language , organic chemistry , computer science , chromatography
Single crystals of CaMoO 4 and SrMoO 4 are grown by a flux‐growth technique using the corresponding chlorides as the flux. The crystal structures of CaMoO 4 and SrMoO 4 are refined using powder X‐ray diffraction data: space group I 4 1 / a (no. 88), Z = 4. Unlike SrMoO 4 , which can be reduced to SrMoO 3 , the CaMoO 4 decomposes to CaO and Mo in H 2 /Ar (5%) flow. It is probably because the highly distorted MoO 4 tetrahedron in CaMoO 4 hinders the structural transition. The distortion of MoO 4 tetrahedron is also confirmed by their emission spectra.
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