A layered fluorinated gallium phosphate organically templated by propane‐1,3‐diaminium,an analog of the aluminophosphate MIL‐12: Ga2(PO4)F5·C3H12N2 |
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Authors: | Thierry Loiseau Gerard Ferey |
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Abstract: | Crystals of the oxyfluorinated gallium phosphate MIL‐12 (digallium phosphate pentafluoride propane‐1,3‐diaminium), (C3H12N2)Ga2(PO4)F5], were synthesized hydrothermally at 453 K under autogenous pressure using propane‐1,3‐diamine as the structure‐directing agent. The title compound is isomorphous with the aluminium phosphate having the MIL‐12 structural type. The structure is built up from a two‐dimensional anionic network intercalated by the diamine species. The inorganic layer is composed of corner‐linked GaO2F4 octahedra and PO4 tetrahedra. The diprotonated diamine group is located on a mirror plane, between the inorganic sheets, and interacts preferentially via hydrogen bonding through the ammonium groups and the terminal F and bridging O atoms of the inorganic layer. One of the Ga atoms lies on an inversion centre and the other lies on a mirror plane, as does the P atom, two of the phosphate O atoms and one of the F atoms. |
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