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Crystal structure of new hydroxide fluorides with isolated F anions: [H3N(CH2)6NH3]2M(F, OH)6(F,OH)·H2O (M = Al, In) |
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| Authors: | J Touret X Bourdon M Leblanc R Retoux J Renaudin V Maisonneuve |
| Institution: | a Laboratoire des Fluorures, UMR 6010, Faculté des Sciences, Université du Maine, Avenue Olivier-Messiaen, 72085 Le Mans Cedex 9, France b Laboratoire des Matériaux Minéraux, UPRES-A 7016, Ecole Nationale Supérieure de Chimie de Mulhouse, 3 rue Alfred Werner, 68093 Mulhouse Cedex, France |
| Abstract: | The synthesis and structural characterization of new hydroxo-fluorometallates H3N(CH2)6NH3]2M(F,OH)7·H2O (M=Al, In) are presented. Their preparation is achieved in solvothermal conditions by microwave or classical heating. The isotopic structures, determined by single crystal X-ray diffraction, are triclinic with the space group P–1. The structural arrangement can be described from isolated MX6 (X=F, OH) octahedra connected by diprotonated diaminohexane via a complex network of hydrogen bonds. X? anions and water molecules are found between the organic chains. A study by 19F NMR of the Al compound confirms a statistical occupancy of fluorine sites by hydroxyl groups and the occurrence of isolated F? anions. |
| Keywords: | Microwave heating Hybrid compounds Fluorides Nuclear magnetic resonance |
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