Microwave Synthesis of an Aluminum Fluoride Hydrate with Cationic Vacancies: Structure, Thermal Stability, and Acidic Properties
作者： Alain Tressaud , Damien Dambournet , Alain Demourgues , Charlotte Martineau , Etienne Durand
DOI: 10.1021/CM8023617
关键词:
摘要: Aluminum fluoride hydrate was synthesized by a microwave hydrothermal process. The structure derives from the ReO3 type structure, that is, high temperature of α-AlF3. cubic symmetry adopted this compound arises water molecules, stabilized as ligand surrounding Al3+ cations which induces cationic vacancies revealed Rietveld refinement. following chemical formula Al0.82◻0.18F2.46(H2O)0.54 is supported analysis and TGA measurements. This represents first example aluminum vacancy in Al-based fluorides chemistry. High field 27Al NMR spectroscopy enabled identification quantification species: AlF6 AlF6−x(H2O)x with x = 1, 2, 3, showed are mainly surrounded molecules but also low content ions evidenced 19F NMR. hydrogen bonding network, takes place vicinity vacancies, characterized FTIR 1H spectroscopies. A 2:1 comple...
acs.org
archives-ouvertes.fr
sci-hub.se 参考文章(44)
Francis Taulelle, Marek Pruski, Jean Paul Amoureux, David Lang, Alain Bailly, Clarisse Huguenard, Mohamed Haouas, Corine Gérardin, Thierry Loiseau, Gérard Férey, Isomerization of the Prenucleation Building Unit during Crystallization of AlPO4-CJ2: An MQMAS, CP-MQMAS, and HETCOR NMR Study Journal of the American Chemical Society. ,vol. 121, pp. 12148- 12153 ,(1999) , 10.1021/JA991295N
N. Simon, N. Guillou, T. Loiseau, F. Taulelle, G. Férey, Synthesis and ab Initio Structure Determination from X-Ray Powder Diffraction of MIL-12, a New Layered Fluoroaluminophosphate Templated with 1,3 Diaminopropane: [N2C3H12]Al2(PO4)(OHx, F5−x) (x≈2) Journal of Solid State Chemistry. ,vol. 147, pp. 92- 98 ,(1999) , 10.1006/JSSC.1999.8182
B.C. Bricknell, T.A. Ford, T.M. Letcher, Spectroscopic and thermodynamic properties of hydrogen bonded water molecules in binary liquid mixtures Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 53, pp. 299- 315 ,(1997) , 10.1016/S1386-1425(96)01818-5
B. Zhou, B. L. Sherriff, F. Taulelle, G. Wu, NUCLEAR MAGNETIC RESONANCE STUDY OF Al:Si AND F:OH ORDER IN ZUNYITE Canadian Mineralogist. ,vol. 41, pp. 891- 903 ,(2003) , 10.2113/GSCANMIN.41.4.891
Alexandre Vimont, Jean-Claude Lavalley, Loïc Francke, Alain Demourgues, Alain Tressaud, Marco Daturi, Infrared study of the surface properties of HTB-type Al-, Cr-, Fe-hydroxyfluorides Journal of Physical Chemistry B. ,vol. 108, pp. 3246- 3255 ,(2004) , 10.1021/JP036496Z
Albert Rimola, Sergio Tosoni, Mariona Sodupe, Piero Ugliengo, Peptide bond formation activated by the interplay of Lewis and Bronsted catalysts Chemical Physics Letters. ,vol. 408, pp. 295- 301 ,(2005) , 10.1016/J.CPLETT.2005.04.056
P. Blümler, J. Jansen, B. Blümich, Two-dimensional one-pulse rotational echo spectra. Solid State Nuclear Magnetic Resonance. ,vol. 3, pp. 237- 240 ,(1994) , 10.1016/0926-2040(94)90044-2
Lars Fischer, Virginie Harlé, Slavik Kasztelan, J.-B. d'Espinose de la Caillerie, Identification of fluorine sites at the surface of fluorinated γ-alumina by two-dimensional MAS NMR Solid State Nuclear Magnetic Resonance. ,vol. 16, pp. 85- 91 ,(2000) , 10.1016/S0926-2040(00)00058-8
D Massiot, C Bessada, J.P Coutures, F Taulelle, A quantitative study of 27Al MAS NMR in crystalline YAG Journal of Magnetic Resonance. ,vol. 90, pp. 231- 242 ,(1990) , 10.1016/0022-2364(90)90130-2
Juan Rodríguez-Carvajal, Recent advances in magnetic structure determination by neutron powder diffraction Physica B: Condensed Matter. ,vol. 192, pp. 55- 69 ,(1993) , 10.1016/0921-4526(93)90108-I