First Structural Characterization of Binary As III and Sb III Azides

The highly explosive molecules As(N 3 ) 3 and Sb(N 3 ) 3 were obtained in pure form by the reactions of the corresponding fluorides with (CH 3 ) 3 SiN 3 in SO 2 and purification by sublimation. The crystal structures and 14 N NMR, infrared, and Raman spectra were determined, and the results compared...

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Bibliographic Details
Published in:Chemistry : a European journal 2004-01, Vol.10 (2), p.508-517
Main Authors: Haiges, Ralf, Vij, Ashwani, Boatz, Jerry A., Schneider, Stefan, Schroer, Thorsten, Gerken, Michael, Christe, Karl O.
Format: Article
Language:English
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Summary:The highly explosive molecules As(N 3 ) 3 and Sb(N 3 ) 3 were obtained in pure form by the reactions of the corresponding fluorides with (CH 3 ) 3 SiN 3 in SO 2 and purification by sublimation. The crystal structures and 14 N NMR, infrared, and Raman spectra were determined, and the results compared to ab initio second‐order perturbation theory calculations. Whereas Sb(N 3 ) 3 possesses a propeller‐shaped, pyramidal structure with perfect C 3 symmetry, the As(N 3 ) 3 molecule is significantly distorted from C 3 symmetry due to crystal packing effects.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.200305482