𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Ammonium 1,3,4,6-tetra­nitro-2,5-di­aza­pentalene

✍ Scribed by Butcher, Ray J. ;Bottaro, Jeffrey C. ;Gilardi, R.

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
253 KB
Volume
59
Category
Article
ISSN
1600-5368

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Potassium 1,3,4,6-tetra­nitro-2,5-di­aza
Potassium 1,3,4,6-tetra­nitro-2,5-di­aza­pentalene
✍ Butcher, Ray J. ;Bottaro, Jeffrey C. ;Gilardi, R. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 293 KB

Single-crystal X-ray study T = 93 K Mean '(C±C) = 0.002 A Ê R factor = 0.024 wR factor = 0.063 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

1,3,4-Tri­nitro-7,8-di­aza­pentalene
1,3,4-Tri­nitro-7,8-di­aza­pentalene
✍ Butcher, Ray J. ;Bottaro, Jeffrey C. ;Gilardi, R. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 243 KB

In this molecule, while the 7,8-diazapentalene skeleton is planar, the nitro groups are twisted with respect to and deviate from this plane. The metrical parameters of the monosubstituted and disubstituted ®ve-membered rings differ.

1,3,5,7-tetra­nitro-3,7-di­aza­bi­cyclo­
1,3,5,7-tetra­nitro-3,7-di­aza­bi­cyclo­[3.3.1]­nonane
✍ Gilardi, Richard D. ;Axenrod, Theodore ;Sun, Jianguang ;Flippen-Anderson, Judith 📂 Article 📅 2001 🏛 International Union of Crystallography 🌐 English ⚖ 286 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.002 A Ê Disorder in main residue R factor = 0.056 wR factor = 0.147 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

2,3-5,6-Tetra­fluoro-1,4-di-4-pyridylben
2,3-5,6-Tetra­fluoro-1,4-di-4-pyridylbenzene
✍ Ferrer, Montserrat ;Gutiérrez, Albert ;Mounir, Mounia ;Solans, Xavier ;Font-Bard 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 407 KB

In the title centrosymmetric molecule, C 16 H 8 F 4 N 2 , the dihedral angle between the pyridine and benzene rings is 50.47 (5) , which is intermediate between those observed when the central ring is benzene and when it is an anthracene. The crystal structure consists of layers of molecules paralle