ΓNO 3 Γ , crystallizes with two asparaginium cations and two nitrate anions in the asymmetric unit. In both asparaginium residues, protonation take place at the carboxyl O atom cis to the amine group. Cation I exists in a trans conformation, whereas cation II exhibits a gauche I conformation. A stra
l-Asparaginium picrate
β Scribed by Anitha, K. ;Athimoolam, S. ;Rajaram, R. K.
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 371 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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β¦ Synopsis
ΓC 6 H 2 N 3 O 7 Γ , the two ions are connected by strong asymmetric O-HΓ Γ ΓO hydrogen bonds. The cation is involved in a Z1 (zigzag) head-to-tail sequence along the b axis. The torsion angle 21 corresponds to a cis conformation. Hydrophobic layers across z = 1 2 are sandwiched between hydrophilic layers across the z = 0 plane.
π SIMILAR VOLUMES
## Abstract A crystalline salt of prolinium picrate, C~11~H~12~N~4~O~9~, has been prepared and characterized by Xβray crystallography. The salt crystallizes in orthorhombic space group P2~1~2~1~2~1~ with a = 6.325(1)Γ , b = 9.269(1)Γ , c = 24.379(4)Γ , V = 1429.4(5)Γ ^3^, Z = 4. In the title salt, the
In the title compound [systematic name: 3-(phenothiazin-10-yl)propanaminium 2,4,6-trinitrophenolate], C~17~H~21~N~2~S^+^Β·C~6~H~2~N~3~O~7~ ^β^, the dihedral angle between the two outer aromatic rings of the phenothiazine unit is 37.76β (6)Β°. The crystal packing is stabilized by NβH...O hydrogen bonds