The structures of two salts of flunarizine, namely 1-bis[(4-fluorophenyl)methyl]-4-[(2E)-3-phenylprop-2-en-1-yl]piperazine, C26H26F2N2, are reported. In flunarizinium nicotinate systematic name: 4-bis[(4-fluorophenyl)methyl]-1-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-ium pyridine-3-carboxylate}, C26H27F2N2+·C6H4NO2−, (I), the two ionic components are linked by a short charge-assisted N—H...O hydrogen bond. The ion pairs are linked into a three-dimensional framework structure by three independent C—H...O hydrogen bonds, augmented by C—H...π(arene) hydrogen bonds and an aromatic π–π stacking interaction. In flunarizinediium bis(4-toluenesulfonate) dihydrate systematic name: 1-[bis(4-fluorophenyl)methyl]-4-[(2E)-3-phenylprop-2-en-1-yl]piperazine-1,4-diium bis(4-methylbenzenesulfonate) dihydrate}, C26H28F2N22+·2C7H7O3S−·2H2O, (II), one of the anions is disordered over two sites with occupancies of 0.832 (6) and 0.168 (6). The five independent components are linked into ribbons by two independent N—H...O hydrogen bonds and four independent O—H...O hydrogen bonds, and these ribbons are linked to form a three-dimensional framework by two independent C—H...O hydrogen bonds, but C—H...π(arene) hydrogen bonds and aromatic π–π stacking interactions are absent from the structure of (II). Comparisons are made with some related structures.
报告了两种氟桂嗪盐(即 1-双[(4-氟苯基)甲基]-4-[(2E)-3-苯基丙-2-烯-1-基]哌嗪,C26H26F2N2)的结构。在烟酸氟桂嗪鎓系统名称:4-双[(4-氟苯基)甲基]-1-[(2E)-3-苯基丙-2-烯-1-基]哌嗪-1-鎓吡啶-3-羧酸盐},C26H27F2N2+-C6H4NO2-,(I)中,两个离子成分通过短电荷辅助 N-H...O 氢键连接。离子对通过三个独立的 C-H...O 氢键连接成一个三维框架结构,并通过 C-H...π(arene)氢键和一个芳香族 π-π 堆积相互作用增强。在二水氟嗪二鎓双(4-甲苯磺酸盐)系统名称:1-[双(4-氟苯基)甲基]-4-[(2E)-3-苯基丙-2-烯-1-基]哌嗪-1,4-二鎓双(4-甲基苯磺酸盐)二水合物},C26H28F2N22+-2C7H7O3S--2H2O,(II)中,其中一个阴离子在两个位点上无序,占据率分别为 0.832(6)和 0.168(6)。五个独立的组分通过两个独立的 N-H...O 氢键和四个独立的 O-H...O 氢键连接成带状,这些带状组分通过两个独立的 C-H...O 氢键连接成一个三维框架,但 (II) 结构中不存在 C-H...π(arene)氢键和芳香族 π-π 堆积相互作用。与一些相关结构进行了比较。