The Borosulfates K4[BS4O15(OH)], Ba[B2S3O13], and Gd2[B2S6O24] |
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Authors: | Peter Gross Arno Kirchhain Henning A. Höppe |
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Affiliation: | Universitaet Augsburg, Institut fuer Physik, Augsburg, Germany |
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Abstract: | K4[BS4O15(OH)], Ba[B2S3O13], and Gd2[B2S6O24] were obtained by a new synthetic approach. The strategy involves initially synthesizing the complex acid H[B(HSO4)4] which is subsequently reacted in an open system with anhydrous chlorides of K, Ba, and Gd to the respective borosulfates and a volatile molecule (HCl). Furthermore, protonated borosulfates should be accessible by appropriate stoichiometry of the starting materials, particularly in closed systems, which inhibit deprotonation of H[B(HSO4)4] via condensation and dehydration. This approach led to the successful synthesis of the first divalent and trivalent metal borosulfates (Ba[B2S3O13] with band‐silicate topology and Gd2[B2S6O24] with cyclosilicate topology) and the first hydrogen borosulfate K4[BS4O15(OH)]. |
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Keywords: | barium borosulfates gadolinium potassium sulfatoborates |
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