Novel Layered Hybrid Fluoroaluminate in the Composition Space Diagram of the Al(OH)3-HguaCl-HFaq-EtOH System
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- 作者：Karim Adil ; Armel Le Bail ; Marc Leblanc ; Vincent Maisonneuve
- 刊名：Inorganic Chemistry
- 出版年：2010
- 出版时间：March 1, 2010
- 年：2010
- 卷：49
- 期：5
- 页码：2392-2397
- 全文大小：886K
- 年卷期：v.49,no.5(March 1, 2010)
- ISSN：1520-510X
文摘
A composition space diagram is used to establish the stability regions of hybrid fluoroaluminates synthesized by solvothermal reactions in the Al(OH)3−HguaCl−HFaq−EtOH system. The syntheses are conducted using microwave heating at 190 °C for 1 h. The structures of two new guanidinium fluoroaluminates, (H3O)2·[Hgua]16·(Al4F18)3·H2O and [Hgua]2·(Al5F17), are reported. (H3O)2·[Hgua]16·(Al4F18)3·H2O, determined from single-crystal X-ray data, consists of discrete (Al4F18)6− polyanions, while [Hgua]2·(Al5F17), solved from powder X-ray diffraction data in direct space, contains unprecedented Al5F17 layers constructed from the intergrowth of HTB and perovskite columns. A disorder of H2O and H3O+ is evidenced in (H3O)2·[Hgua]16·(Al4F18)3·H2O together with a disorder of guanidinium cations in the interlayer space of [Hgua]2·(Al5F17).