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cis-2,4,6,8-Tetra­nitro-1H,5H-2,4,6,8-tetra­aza­bi­cyclo­[3.3.0]­octane, the energetic compound `bi­cyclo-HMX'

✍ Scribed by Gilardi, Richard ;Flippen-Anderson, Judith L. ;Evans, Robin

Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
304 KB
Volume
58
Category
Article
ISSN
1600-5368

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✦ Synopsis

Single-crystal X-ray study T = 294 K Mean '(C±C) = 0.003 A Ê R factor = 0.036 wR factor = 0.091 Data-to-parameter ratio = 7.9

For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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Single-crystal X-ray study T = 94 K Mean '(C±C) = 0.002 A Ê R factor = 0.035 wR factor = 0.087 Data-to-parameter ratio = 10.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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The structure of the title compound, C 5 H 7 N 7 O 7 , contains fused ®ve-and six-membered rings in a ¯attened envelope and a twist-boat conformation, respectively, with a cis junction between the two heterocyclic rings.