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Ternary and tetrahedral symmetry in hybrid fluorides, fluoride carbonates and carbonates |
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| Authors: | Karim Adil Gilles Dujardin Marc Leblanc Vincent Maisonneuve |
| Affiliation: | a Laboratoire des Oxydes et Fluorures, UMR CNRS 6010, IRIM2F FR CNRS 2575, Faculté des Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 09, France b Laboratoire de Chimie Organique et Macromoléculaire, UMR CNRS 6011, IRIM2F FR CNRS 2575, Faculté des Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 09, France |
| Abstract: | Tren amine cations and carbonate anions adopt a ternary symmetry while tetra amine cations are tetrahedral. The symmetry of these constitutive ions influences strongly the nature of the solids which crystallise from solutions. Large fluorinated aluminate polyanions with tetrahedral symmetry appear in the presence of tren amine, while infinite chains of AlF6 octahedra are observed with tetra amine and that noncentrosymmetric structures are frequently encountered in rare earth fluoride carbonates. |
| Keywords: | Hybrid fluorides Carbonates Hydrothermal synthesis Solvothermal synthesis Microwave heating Solid state |
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