Syntheses and crystal structures of 4-(4-methoxyphenyl) piperazin-1-ium 4-methylbenzoate monohydrate and bis[4-(4-methoxyphenyl)piperazin-1- ium] benzene-1,2-dicarboxylate

Shankara Prasad, H. J. and Devaraju and Vinaya and Yathirajan, H. S. and Parkin, Sean R. and Glidewell, Christopher (2022) Syntheses and crystal structures of 4-(4-methoxyphenyl) piperazin-1-ium 4-methylbenzoate monohydrate and bis[4-(4-methoxyphenyl)piperazin-1- ium] benzene-1,2-dicarboxylate. Acta Crystallographica Section E, 78 (9). pp. 947-952. ISSN 2056-9890

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Abstract

Co-crystallization of N-(4-meth­oxy­phen­yl)piperazine with 4-methyl­benzoic acid and with benzene-1,2-di­carb­oxy­lic acid yields the salts 4-(4-meth­oxy­phen­yl)piperazin-1-ium 4-methyl­benzoate monohydrate, C11H17N2O+·C8H7O2−·H2O (I), and bis­[4-(4-meth­oxy­phen­yl)piperazin-1-ium] benzene-1,2-di­carboxyl­ate, 2C11H17N2O+·C8H4O42− (II). These salts both crystallize with Z′ = 2, in space groups P[\overline{1}] and Pna21, respectively. In compound (I), a combination of four O—H⋯O, four N—H⋯O, one C—H⋯O and one C—H⋯π(arene) hydrogen bonds link the six independent components into complex sheets, within which the two piperazine rings, the two anions, and the two water mol­ecules are related by an approximate, non-crystallographic translation along the b-axis direction. In compound (II), sheets containing R44(18) and R1012(38) rings are formed by the combined action of eight independent N—H⋯O hydrogen bonds. Comparisons are made with the structures of some related compounds.

Item Type:	Article
Uncontrolled Keywords:	piperazine, co-crystallization, crystal structure, molecular structure, hydrogen bonding, supramolecular assembly, twinning by inversion
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	C Swapna Library Assistant
Date Deposited:	29 Aug 2022 05:27
Last Modified:	02 Sep 2022 05:14
URI:	http://eprints.uni-mysore.ac.in/id/eprint/17374

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