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dc.contributor.authorHarish Chinthal, Chayanna
dc.contributor.authorYathirajan, Hemmige S
dc.contributor.authorKavitha, Channappa N
dc.contributor.authorForo, Sabine
dc.contributor.authorGlidewell, Christopher
dc.identifier.citationHarish Chinthal , C , Yathirajan , H S , Kavitha , C N , Foro , S & Glidewell , C 2020 , ' The crystal structures of salts of N -(4-fluoro­phen­yl)piperazine with four aromatic carb­­oxy­lic acids and with picric acid ' , Acta Crystallographica Section E Crystallographic Communications , vol. 76 , no. Part 8 , pp. 1179-1186 .
dc.identifier.otherPURE: 271286464
dc.identifier.otherPURE UUID: 866eff37-29c1-4cbe-86b4-67518ef92a5e
dc.identifier.otherJisc: 9d616454807b4661b05c0573b5041e40
dc.identifier.otherPubMed: 32843996
dc.identifier.otherpii: hb7928
dc.identifier.otherpmc: PMC7405574
dc.identifier.otherScopus: 85090374664
dc.identifier.otherWOS: 000569355400002
dc.descriptionHSY thanks the University Grants Commission, New Delhi, for the award of a BSR Faculty Fellowship for three years.en
dc.description.abstractThe structures are reported for five salts formed by reactions between N-(4-fluoro­phen­yl)piperazine and aromatic acids. In 4-(4-fluoro­phen­yl)piperazin-1-ium 2-fluoro­benzoate monohydrate, C10H14FN2+·C7H4FO2−·H2O, (I), the components are linked by a combination of N—H⋯O and O—H⋯O hydrogen bonds to form a chain of alternating R46(12) and R66(16) rings. The ionic components of 4-(4-fluoro­phen­yl)piperazin-1-ium 2-bromo­benzoate 0.353-hydrate, C10H14FN2+·C7H4BrO2−·0.353H2O, (II), are linked by N—H⋯O hydrogen bonds to form a centrosymmetric four-ion aggregate containing an R44(12) motif, and these aggregates are linked into a mol­ecular ladder by a single C—H⋯π(arene) hydrogen bond. 4-(4-Fluoro­phen­yl)piperazin-1-ium 2-iodo­benzoate, C10H14FN2+·C7H4IO2−, (III), crystallizes with Z′ = 2 in space group P: the four independent ions are linked by N—H⋯O hydrogen bonds to form a non-centrosymmetric aggregate again containing an R44(12) motif, and aggregates of this type are linked into a ribbon by a combination of C—H⋯O and C—H⋯π(arene) hydrogen bonds. The anion in 4-(4-fluoro­phen­yl)piperazin-1-ium 2,4,6-tri­nitro­phenolate, C10H14FN2+·C6H2N3O7−, (IV), shows clear evidence of extensive electronic delocalization from the phenolate O atom into the adjacent ring. The ions are linked by a combination of two-centre N—H⋯O and three-centre N—H⋯(O)2 hydrogen bonds to form centrosymmetric four-ion aggregates containing three types of ring. The ions in 4-(4-fluoro­phen­yl)piperazin-1-ium 3,5-di­nitro­benzoate, C10H14FN2+·C7H3N2O6−, (V), are again linked by N—H⋯O hydrogen bonds to form centrosymmetric R44(12) aggregates, which are themselves linked by a C—H⋯π(arene) hydrogen bond to form sheets, the stacking of which leads to the formation of narrow channels, containing disordered and/or mobile solvent entities. Comparisons are made with some related structures.
dc.relation.ispartofActa Crystallographica Section E Crystallographic Communicationsen
dc.rightsCopyright © 2020 The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.en
dc.subjectCrystal structureen
dc.subjectHydrogen bondingen
dc.subjectMol­ecular structureen
dc.subjectPiperazine saltsen
dc.subjectSupra­molecular assemblyen
dc.subjectQD Chemistryen
dc.titleThe crystal structures of salts of N-(4-fluoro­phen­yl)piperazine with four aromatic carb­­oxy­lic acids and with picric aciden
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.description.statusPeer revieweden

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