Hochdrucksynthese von Caesiumamidazid,Cs2(NH2)N3 aus Caesiummetall und Ammoniak |
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Authors: | B Harbrecht H Jacobs |
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Abstract: | High-pressure Synthesis of Cesium Amide Azide, Cs2(NH2)N3 from Cesium Metal and Ammonia The reaction of cesium and yttrium metal with ammonia at 5–6 kbar and 190–220°C led to a well crystallized cesium amide azide and to YN. The formation of the cesium compound is discussed by volume effects. X-ray investigations gave the atomic arrangement of the compound. The tetragonal unit cell with a = 8.194(3) and c = 4.450(1) Å contains two formula units. The structure determination was successfull in the space group P4/mbm. The azide ion has different coordination and bond length (1.255 Å) as compared with that in the alkali metal azides (1.17 Å). The amide ions carry out a strong libration. |
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