Dioxopromethazinium picrate

Harrison, William T. A. and Ashok, M. A. and Yathirajan, H. S. and Narayana Achar, B. (2007) Dioxopromethazinium picrate. Acta Crystallographica Section E, 63 (7). o3277-U4087. ISSN 2056-9890

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Abstract

The title compound {systematic name: [1-(9,9-dioxo-10H-phenothia­zin-10-yl)-2-prop­yl]dimethyl­ammonium 2,4,6-trinitro­phenolate}, C17H21N2O2S+·C6H2N3O7−, is a mol­ecular salt arising from the reaction of racemic dioxopromethazine and picric acid, crystallizing with three ion pairs in the asymmetric unit. The conformations of the three distinct cations are very similar and each associates with a nearby picrate anion by way of hydrogen bonds. In one case, a simple N—H⋯O link occurs to the acceptor deprotonated phenol O atom; the other two ion pairs are linked by bifurcated N—H⋯(O,O) hydrogen bonds, where the second O atom is part of a nitro group. In the crystal structure, there is weak π–π stacking involving two of the picrate aromatic rings [ring–centroid separation = 3.676 (2) Å].

Item Type:	Article
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	C Swapna Library Assistant
Date Deposited:	13 Sep 2019 09:52
Last Modified:	13 Sep 2019 09:52
URI:	http://eprints.uni-mysore.ac.in/id/eprint/8118

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