ISSN:
1572-8854
Keywords:
Azetidine
;
dinitroazetidine
;
energetic materials
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The structures of DNAZ (3,3-dinitroazetidine), DNAZ-COH, DNAZ-CO-DNAZ, and (DNAZ-CO)2 have been determined. DNAZ crystallizes in the space group P21/c with cell parameters a = 5.928(7) Å, b = 15.8380(2) Å, c = 12.6837(15) and β = 93.23°. DNAZ-COH crystallizes in the space group P21/c with cell parameters a = 10.3270(10) Å, b = 6.0615(12) Å, c = 11.2514(12), and β = 100.17°. DNAZ-CO-DNAZ crystallizes in the space group P21/n with cell parameters a = 10.3630(6) Å, b = 6.0901(5) Å, c = 19.9421(11) and β = 102.74°. (DNAZ-CO)2 crystallizes in the orthorhombic space group Fdd2 with cell parameters a = 13.1956(10) Å, b = 19.524(3) Å, c = 10.3259(11). This last compound is unique in that the trans carbonyls are planar and the adjoining azetidine rings are also planar to within 0.1° in all torsion angles. DNAZ crystals have a dimeric asymmetric unit where two nonequal molecules are bonded to each other with a single hydrogen bond. Like other four-membered rings with gem-dinitro groups, most of these dinitroazetidines display mutually perpendicular nitro groups.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1011996132020
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