Abstract
An X-ray structural investigation has been carried out for four polycyclic nitramines with an isowurtzitane structure. These compounds are high-density, high-energy materials: 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diaza-tetracyclo(5.5.0.03,11.05,9)dodecane (4), 4,8,10,12-tetranitro-2,6-dioxa-4,8,10,12-tetrazatetracyclo (5.5.0.03,11.05,9)dodecane (5), and 4,6,10,12-tetranitro-2,8-dioxa-4,6,10,12-tetrazatetracyclo(5.5.0.03,11.05,9)-dodecane (6). Nitramine 5 crystallizes as triclinic (form α, d calc = 1.966 g/cm3) and trigonal (form β, d calc = 2.014 g/cm3) modifications. All amine nitrogen atoms have a nonplanar structure; the mean sum of bond angles of the six-membered cycles is 345.2°, and the corresponding mean value for the five-membered cycles is 337.6°. Other features of their intramolecular structure are also discussed.
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Original Russian Text Copyright © 2005 by Yu. V. Gatilov, T. V. Rybalova, O. A. Efimov, A. A. Lobanova, G. V. Sakovich, and S. V. Sysolyatin
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Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 3, pp. 579–584, May–June, 2005.
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Gatilov, Y.V., Rybalova, T.V., Efimov, O.A. et al. Molecular and crystal structure of polycyclic nitramines. J Struct Chem 46, 566–571 (2005). https://doi.org/10.1007/s10947-006-0141-y
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DOI: https://doi.org/10.1007/s10947-006-0141-y