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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A dihydrogen phosphate anionic network as a host lattice for cations in 1-methylpiperazine-1,4-diium bis(dihydrogen phosphate) and 2-(pyridin-2-yl)pyridinium dihydrogen phosphate–orthophosphoric acid (1/1)
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A dihydrogen phosphate anionic network as a host lattice for cations in 1-methylpiperazine-1,4-diium bis(dihydrogen phosphate) and 2-(pyridin-2-yl)pyridinium dihydrogen phosphate–orthophosphoric acid (1/1)

机译：磷酸二氢阴离子网络作为1-甲基哌嗪-1,4-二（磷酸二氢）和2-（吡啶-2-基）吡啶二氢磷酸二氢-正磷酸（1/1）中阳离子的主晶格

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摘要

In the salt 1-methylpiperazine-1,4-diium bis(dihydrogen phosphate), C5H13N22+·2H2PO4?, (I), and the solvated salt 2-(pyridin-2-yl)pyridinium dihydrogen phosphate–orthophosphoric acid (1/1), C10H9N2+·H2PO4?·H3PO4, (II), the formation of O—H...O and N—H...O hydrogen bonds between the dihydrogen phosphate (H2PO4?) anions and the cations constructs a three- and two-dimensional anionic–cationic network, respectively. In (I), the self-assembly of H2PO4? anions forms a two-dimensional pseudo-honeycomb-like supramolecular architecture along the (010) plane. 1-Methylpiperazine-1,4-diium cations are trapped between the (010) anionic layers through three N—H...O hydrogen bonds. In solvated salt (II), the self-assembly of H2PO4? anions forms a two-dimensional supramolecular architecture with open channels projecting along the [001] direction. The 2-(pyridin-2-yl)pyridinium cations are trapped between the open channels by N—H...O and C—H...O hydrogen bonds. From a study of previously reported structures, dihydrogen phosphate anions show a supramolecular flexibility depending on the nature of the cations. The dihydrogen phosphate anion may be suitable for the design of the host lattice for host–guest supramolecular systems.
机译：在盐1-甲基哌嗪-1,4-双（磷酸二氢二钠）中，C5H13N22 +·2H2PO4？（I）和溶剂化的盐2-（吡啶-2-基）磷酸二氢吡啶-正磷酸（1/1 ），C10H9N2 +·H2PO4··H3PO4，（II），在磷酸二氢根（H2PO4·）和阳离子之间形成OH-O和NH-O氢键，构成三和二维阴离子-阳离子网络。在（I）中，H2PO4的自组装？阴离子沿（010）平面形成二维拟蜂窝状超分子结构。 1-甲基哌嗪-1,4-二阳离子通过三个NH ... O氢键被捕获在（010）阴离子层之间。在溶剂化盐（II）中，H2PO4的自组装？阴离子形成具有沿[001]方向突出的开放通道的二维超分子结构。 2-（吡啶-2-基）吡啶阳离子被NH.O和CHH.O氢键捕获在开放通道之间。通过对先前报道的结构的研究，磷酸二氢根阴离子显示出超分子的柔性，具体取决于阳离子的性质。磷酸二氢根阴离子可能适合主客体超分子系统的主晶格设计。

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