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Synthesis, Crystal Structure of a New Structure Type, and Thermal Analysis of the Ammonium Borophosphate (NH 4 ) 2 [B 2 P 3 O 11 (OH)]
Author(s) -
Förg Katharina,
Höppe Henning A.
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700061
Subject(s) - orthorhombic crystal system , crystallography , crystal structure , hydrothermal synthesis , boron , chemistry , single crystal , type (biology) , hydrothermal circulation , ion , ammonium , stereochemistry , ecology , organic chemistry , biology , seismology , geology
(NH 4 ) 2 [B 2 P 3 O 11 (OH)] was synthesized as a crystalline colorless powder by reaction of (NH 4 ) 2 HPO 4 , H 3 BO 3 , and H 3 PO 4 under hydrothermal conditions at 180 °C. According to X‐ray single‐crystal investigations (NH 4 ) 2 [B 2 P 3 O 11 (OH)] crystallizes in a new structure type in the orthorhombic space group P 2 1 2 1 2 1 (no. 19) [ Z = 4, a = 4.509(3), b = 14.490(11), c = 16.401(12) Å, R 1 = 0.046, wR 2 = 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 (NH 4 ) 2 Mn II [B 2 P 3 O 11 (OH) 2 ]Cl [1] for the first time. Besides the spectroscopic properties the thermal behavior is presented as well.