Synthesis,Crystal Structure of a New Structure Type,and Thermal Analysis of the Ammonium Borophosphate (NH4)2[B2P3O11(OH)] |
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| Authors: | Katharina Förg Henning A. Höppe |
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| Affiliation: | Institut für Physik, Universit?t Augsburg, Augsburg, Germany |
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| Abstract: | (NH4)2[B2P3O11(OH)] was synthesized as a crystalline colorless powder by reaction of (NH4)2HPO4, H3BO3, and H3PO4 under hydrothermal conditions at 180 °C. According to X‐ray single‐crystal investigations (NH4)2[B2P3O11(OH)] crystallizes in a new structure type in the orthorhombic space group P212121 (no. 19) [Z = 4, a = 4.509(3), b = 14.490(11), c = 16.401(12) Å, R1 = 0.046, wR2 = 0.093, 1682 data, 200 parameters]. The crystal structure comprises infinite layers of corner‐sharing borate, phosphate and hydroxo‐phosphate tetrahedra with ammonium ions in‐between. The loop‐Branched (lB) zweier‐single layer reveals an open‐Branched (oB) vierer‐single ring as fundamental building unit (FBU), which was observed in (NH4)2MnII[B2P3O11(OH)2]Cl[1] for the first time. Besides the spectroscopic properties the thermal behavior is presented as well. |
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| Keywords: | Borophosphate Ammonium Boron Crystal structure Thermal analysis |
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