Levocetirizinium dipicrate

Jasinski, Jerry P. and Butcher, Ray J. and Siddegowda, M. S. and Yathirajan, H. S. and Ramesha, A. R. (2010) Levocetirizinium dipicrate. Acta Crystallographica Section E, 66 (12). o3167. ISSN 1600-5368

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Abstract

There are two cation—dianion pairs in the asymmetric unit of the title compound, C\sb 21H\sb 27ClN\sb 2O\sb 3\sp 2+⋅2C\sb 6H\sb 2N\sb 3O\sb 7\sp -}} systematic name: 1-2-(carb{\-}oxy{\-}meth{\-}oxy)eth{\-}yl-4-({\it R})-(4-chloro{\-}phen{\-}yl)phenyl{\-}meth{\-}ylpiperazine-1,4-diium bis{\-}(2,4,6-trinitro{\-}phenol{\-}ate). The piperazine group in the levocetirizinium cation is protonated at both N atoms. The acetyl end groups form \it R\sb 2\sp 2(8) hydrogen-bonded motifs with adjacent cations. Each picrate anion inter\-acts with the proponated N atom in the cation through a bifurcated N—-H⋅sO hydrogen bond, forming \it R\sb 1\sp 2(6) ring motifs. Strong and weak inter\-molecular N—-H⋅sO and strong O—-H⋅sO hydrogen bonds, and weak π—ring and π—π stacking inter\-actions centroid{--}centroid distance = 3.7419(14){\AA} dominate the crystal packing, creating a three-dimensional supra{\-}molecular structure.

Item Type:	Article
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	LA manjunath user
Date Deposited:	29 Jun 2019 07:55
Last Modified:	29 Jun 2019 08:00
URI:	http://eprints.uni-mysore.ac.in/id/eprint/4144

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