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Structural, thermal and optical properties of elpasolite-like (NH4)2KZrF7
New fluoride compound (NH4)2KZrF7 with the elpasolite structure (sp. gr. Fm-3m) was synthesized by partial cationic substitution in (NH4)3ZrF7 cryolite. Due to small difference in ionic radii of K+ and NH+ , non-equivalent ...