Crystal structures of AgAF<sub>6</sub> (A = P, As, Sb, Nb, Ta) at ambient temperatures期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Crystal structures of AgAF₆ (A = P, As, Sb, Nb, Ta) at ambient temperatures

Authors:	Kazuhiko Matsumoto Rika Hagiwara Yasuhiko Ito Osamu Tamada

Institution:	^a Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan ^b Graduate School of Human and Environmental Study, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan

Abstract:	Structures of AgAF₆ (A=Sb, Ta) have been determined by X-ray single crystal studies at ambient temperatures. AgSbF₆ crystallizes in space group Ia with a=979.85(4) pm, V=9.4076(12)×10⁸ pm³, z=8, and AgTaF₆ crystallizes in space group P4₂/mcm with a=499.49(4) pm, c=960.51(8) pm, V=2.3964(6)×10⁸ pm³, z=2. Only the crystal system and cell parameters were obtained for the isomorphic AgNbF₆; primitive tetragonal, a=497.80(10) pm, b=960.40(10) pm, V=2.3799(12)×10⁸ pm³, z=2. The results of the Raman spectroscopy of AgAF₆ support the obtained structures. The structures are discussed by comparing with that of AgPF₆ and AgAsF₆ which have recently been determined in a series of our study.

Keywords:	AgPF₆ AgAsF₆ AgSbF₆ AgNbF₆ AgTaF₆ X-ray crystallography Raman spectroscopy
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