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2 results on '"ethyltributylphosphonium diethylphosphate"'

1. Structure refinement of (NH4)3Al2(PO4)3 prepared by ionothermal synthesis in phosphonium based ionic liquids – a redetermination

Author

Christopher P. Nicholas, John P.S. Mowat, and Robert W. Broach

Subjects
powder diffraction, aluminophosphate, ionothermal synthesis, ethyltributylphosphonium diethylphosphate, cyphos 169, redetermination, Crystallography, QD901-999
Abstract

After crystallization during ionothermal syntheses in phosphonium-containing ionic liquids, the structure of (NH4)3Al2(PO4)3 [triammonium dialuminum tris(phosphate)] was refined on the basis of powder X-ray diffraction data from a synchrotron source. (NH4)3Al2(PO4)3 is a member of the structural family with formula A3Al2(PO4)3, where A is a group 1 element, and of which the NH4, K, and Rb forms were previously known. The NH4 form is isostructural with the K form, and was previously solved from single-crystal X-ray data when the material (SIZ-2) crystallized from a choline-containing eutectic mixture [Cooper et al. (2004). Nature, 430, 1012–1017]. Our independent refinement incorporates NH4 groups and shows that these NH4 groups are hydrogen bonded to framework O atoms present in rings containing 12 T sites in a channel along the c-axis direction. We describe structural details of (NH4)3Al2(PO4)3 and discuss differences with respect to isostructural forms.

Published
2019
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2. Structure refinement of (NH4)3Al2(PO4)3 prepared by ionothermal synthesis in phosphonium based ionic liquids – a redetermination

Author

Robert W. Broach, Christopher P. Nicholas, and John P. S. Mowat

Subjects
Diffraction, aluminophosphate, Hydrogen, powder diffraction, chemistry.chemical_element, 010402 general chemistry, 010403 inorganic & nuclear chemistry, 01 natural sciences, Research Communications, law.invention, lcsh:Chemistry, chemistry.chemical_compound, law, Group (periodic table), ionothermal synthesis, General Materials Science, Crystallization, Isostructural, Eutectic system, redetermination, General Chemistry, Condensed Matter Physics, 0104 chemical sciences, Crystallography, lcsh:QD1-999, chemistry, Ionic liquid, ethyltributylphosphonium diethylphosphate, cyphos 169, ethyl­tri­butyl­phospho­nium di­ethyl­phosphate, Powder diffraction
Abstract

The crystal structure of (NH4)3Al2(PO4)3 was refined by powder XRD synchrotron data. (NH4)3Al2(PO4)3 is a member of the structural family with formula A 3Al2(PO4)3 where A is a group 1 element, of which the K and Rb forms are also known., After crystallization during ionothermal syntheses in phospho­nium-containing ionic liquids, the structure of (NH4)3Al2(PO4)3 [tri­ammonium dialuminum tris­(phosphate)] was refined on the basis of powder X-ray diffraction data from a synchrotron source. (NH4)3Al2(PO4)3 is a member of the structural family with formula A 3Al2(PO4)3, where A is a group 1 element, and of which the NH4, K, and Rb forms were previously known. The NH4 form is isostructural with the K form, and was previously solved from single-crystal X-ray data when the material (SIZ-2) crystallized from a choline-containing eutectic mixture [Cooper et al. (2004 ▸). Nature, 430, 1012–1017]. Our independent refinement incorporates NH4 groups and shows that these NH4 groups are hydrogen bonded to framework O atoms present in rings containing 12 T sites in a channel along the c-axis direction. We describe structural details of (NH4)3Al2(PO4)3 and discuss differences with respect to isostructural forms.

Published
2019

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