The salt of l-prolinium picrate

Abstract

A crystalline salt of prolinium picrate, C11H12N 4O9, has been prepared and characterized by X-ray crystallography. The salt crystallizes in orthorhombic space group P2 12.21 with a = 6.325(1)Å, b = 9.269(1)Å, c = 24.379(4)Å, V = 1429.4(5)Å3, Z = 4. In the title salt, the picrate and prolinium ion are held by different bifurcated hydrogen bonds of N-H-O type, and stablized by bifurcated hydrogen bonds of CH-O type. There exists a competion between hydrogen bonds and π-π stacking in determining the title crystal. © 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.