Tetramethylammonium-calcium-triazid. Darstellung und Kristallstruktur |
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Authors: | Franz Andreas Mautner Harald Krischner Christoph Kratky |
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Institution: | (1) Abteilung für Strukturforschung, Institut für Physikalische und Theoretische Chemie, Technische Universität Graz, A-8010 Graz, Österreich;(2) Institut für Physikalische Chemie, Universität Graz, A-8010 Graz, Österreich |
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Abstract: | N(CH3)4]Ca(N3)3,M=240.29, was prepared from aqueous solutions of tetramethylammoniumazide with calciumazide at 298 K. The crystals are tetragonala=936.6(7) pm,c=694.7(5)pm, space group P4/nmm,Z=2, (x)=1.31Mgm–3. The crystal structure was determined by single crystal x-ray diffraction (234 Mo-K -reflections, =0.469 mm–1,R=0.064). Calcium is octahedrally coordinated to six azide groups. The octahedra are connected via azide groups to a threedimensional array with the complex ammonium ions between. The terminal nitrogen atoms of the azide groups and the methyl groups are considerably disordered. |
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Keywords: | Azide Calcium Crystal structure Tetramethylammonium |
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