Phosphorous Acid and Urea: Valuable Sources of Phosphorus and Nitrogen in the Hydrothermal Synthesis of Ammonium-Thorium Phosphates
Microcrystals of the first ammonium-thorium phosphates, (NH4)2Th(PO4)2·H2O (tetragonal, I41/amd, a = 7.0192(4) Å, c = 17.9403(8) Å) and NH4Th2(PO4)3 (monoclinic, C2/c, a = 17.880(6) Å, b = 6.906(1) Å, c = 8.152(2) Å, β = 104.39(2)°) were hydrothermally obtained from a Th(NO3)4-CO(NH2)2-H3PO3-H2O sys...
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Veröffentlicht in: | Inorganic chemistry 2008-08, Vol.47 (16), p.7207-7210 |
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creator | Salvadó, Miguel A Pertierra, Pilar Bortun, Anatoly I Trobajo, Camino García, José R |
description | Microcrystals of the first ammonium-thorium phosphates, (NH4)2Th(PO4)2·H2O (tetragonal, I41/amd, a = 7.0192(4) Å, c = 17.9403(8) Å) and NH4Th2(PO4)3 (monoclinic, C2/c, a = 17.880(6) Å, b = 6.906(1) Å, c = 8.152(2) Å, β = 104.39(2)°) were hydrothermally obtained from a Th(NO3)4-CO(NH2)2-H3PO3-H2O system (T = 180 °C). In both cases, the structure consists of a three-dimensional framework with PO4 tetrahedra coordinated to Th atoms (ThO n polyhedra, where n = 8 or 9, for the tetragonal or monoclinic phase, respectively). The ammonium ions (and water molecules) are located in the tunnels. |
doi_str_mv | 10.1021/ic800818c |
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In both cases, the structure consists of a three-dimensional framework with PO4 tetrahedra coordinated to Th atoms (ThO n polyhedra, where n = 8 or 9, for the tetragonal or monoclinic phase, respectively). 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Chem</addtitle><description>Microcrystals of the first ammonium-thorium phosphates, (NH4)2Th(PO4)2·H2O (tetragonal, I41/amd, a = 7.0192(4) Å, c = 17.9403(8) Å) and NH4Th2(PO4)3 (monoclinic, C2/c, a = 17.880(6) Å, b = 6.906(1) Å, c = 8.152(2) Å, β = 104.39(2)°) were hydrothermally obtained from a Th(NO3)4-CO(NH2)2-H3PO3-H2O system (T = 180 °C). In both cases, the structure consists of a three-dimensional framework with PO4 tetrahedra coordinated to Th atoms (ThO n polyhedra, where n = 8 or 9, for the tetragonal or monoclinic phase, respectively). 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Chem</addtitle><date>2008-08-18</date><risdate>2008</risdate><volume>47</volume><issue>16</issue><spage>7207</spage><epage>7210</epage><pages>7207-7210</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>Microcrystals of the first ammonium-thorium phosphates, (NH4)2Th(PO4)2·H2O (tetragonal, I41/amd, a = 7.0192(4) Å, c = 17.9403(8) Å) and NH4Th2(PO4)3 (monoclinic, C2/c, a = 17.880(6) Å, b = 6.906(1) Å, c = 8.152(2) Å, β = 104.39(2)°) were hydrothermally obtained from a Th(NO3)4-CO(NH2)2-H3PO3-H2O system (T = 180 °C). In both cases, the structure consists of a three-dimensional framework with PO4 tetrahedra coordinated to Th atoms (ThO n polyhedra, where n = 8 or 9, for the tetragonal or monoclinic phase, respectively). The ammonium ions (and water molecules) are located in the tunnels.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>18578493</pmid><doi>10.1021/ic800818c</doi><tpages>4</tpages></addata></record> |
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title | Phosphorous Acid and Urea: Valuable Sources of Phosphorus and Nitrogen in the Hydrothermal Synthesis of Ammonium-Thorium Phosphates |
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