A comparative study of the infrared and Raman spectra of DL-histidinium dinitrate and L-histidinium sulphamate helps in determining the effect of hydrogen bonding in these crystals. The nitrate compound has a carboxylic group whereas the sulphamate compound has an ionized carboxyl group. However, th
l-Histidinium dinitrate
✍ Scribed by Benali-Cherif, Nourredine ;Benguedouar, Lamia ;Cherouana, Aouatef ;Bendjeddou, Lamia ;Merazig, Hocine
- Publisher
- International Union of Crystallography
- Year
- 2002
- Tongue
- English
- Weight
- 357 KB
- Volume
- 58
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
✦ Synopsis
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê R factor = 0.036 wR factor = 0.090 Data-to-parameter ratio = 7.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
📜 SIMILAR VOLUMES
2À , the anions and cations are linked to each other through hydrogen bonds.
Á2NO 3 À , the diprotonated argininium molecule is linked by a strong OÐHÁ Á ÁO [2.653 (7) A Ê ] hydrogen bond to the nitrate anion. The singlebonded O atom of the carboxyl group exhibits a very unusual cis conformation with respect to the -amino N atom. Chelated three-centered hydrogen bonds are ob