The 2:1 complex of 4-aminobenzoic acid and 4,4′-bipyridyl N,N′-dioxide
✍ Scribed by Moreno-Fuquen, Rodolfo ;Font i Carot, Mercé ;Garriga, Miquel ;Cano, Felix ;Martinez-Ripoll, Martin ;Valderrama-Naranjo, Jaime ;Serratto, Luis Manuel
- Publisher
- International Union of Crystallography
- Year
- 2003
- Tongue
- English
- Weight
- 264 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
Oxalic acid, C~2~O~4~H~2~, and 4,4′-bipyridyl, C~10~H~8~N~2~, crystallize in a 1:1 ratio. The asymmetric unit consists of one oxalic acid (OXA) molecule and one 4,4'bipyridyl (BPY) molecule in general positions, together with one half-OXA molecule and one half-BPY molecule; the latter two molecules
Langmuir films of the title compound have been spread on an aqueous subphase at various values of pH at 10, 15 and 20 8C. Increasing pH and increasing temperature favour stable films, but at the higher subphase pH and temperature values the pressure-area isotherms exhibit a transition to aggregated
Single-crystal X-ray study T = 298 K Mean '(C±C) = 0.003 A Ê R factor = 0.046 wR factor = 0.087 Data-to-parameter ratio = 13.5 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.