K5Mo4O14F: A Novel Fluorinated Polyoxomolybdate and Its Structural Stability
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- 作者：Pifu Gong ; Siyang Luo ; Lei Kang ; Xingxing Jiang ; Jing Xu ; Guochun Zhang ; Zheshuai Lin ; Yicheng Wu ; Chuangtian Chen
- 刊名：Inorganic Chemistry
- 出版年：2015
- 出版时间：July 6, 2015
- 年：2015
- 卷：54
- 期：13
- 页码：6066-6068
- 全文大小：195K
- ISSN：1520-510X
文摘
We successfully synthesized a novel fluorinated polyoxomolybdate, K5Mo4O14F, in which the unusual polyanion [Mo4O14F]5鈥?/sup> consists of face-sharing [Mo2O8F] bioctahedra linked with [MoO4] tetrahedra. This unique structural feature provides the very rare case that simultaneously violates Pauling鈥檚 electrostatic valence (II) and atomic coordination (IV) rules, as well as the stable tendency governed by the polyhedral sharing (III) rule. The structural stability of K5Mo4O14F was confirmed from thermal experiments over a wide temperature range and further elucidated by first-principles calculations.