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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Hydrogen bonds and van der Waals forces as tools for the construction of a herringbone pattern in the crystal structure of hexane-1,6-diaminium hexane-1,6-diyl bis-(hydrogen phospho-nate)
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Hydrogen bonds and van der Waals forces as tools for the construction of a herringbone pattern in the crystal structure of hexane-1,6-diaminium hexane-1,6-diyl bis-(hydrogen phospho-nate)

机译:氢键和范德华力作为在正己烷1,,6-二铵正己烷-1,6-二基双-(膦酸氢根)的晶体结构中构建人字形图案的工具

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The asymmetric unit of the title salt, [H3N(CH2)6NH3][(HO)O2P(CH2)6PO2(OH)], consists of one half of a hexane-1,6-diaminium dication and one half of a hexane-1,6-diyl bis-(hydrogen phospho-nate) dianion. Both are located around different centres of inversion (Wyckoff sites: 2a and 2d) of the space group P21/c. The shape of the hexane-1,6-diaminium cation is best described as a double hook. Both aminium groups as well as the two attached CH2 groups are turned out from the plane of the central four C atoms. In contrast, all six C atoms of the dianion are almost in a plane. The hydrogen phospho-nate (–PO3H) groups of the anions and the aminium groups of the cations form two-dimensional O—H? and O—H?N hydrogen-bonded networks parallel to the ac plane, built up from ten-membered and twelve-membered ring motifs with graph-set descriptors R33(10) and R54(12), respectively. These networks are linked by the alkyl-ene chains of the anions and cations. The resulting three-dimensional network shows a herringbone pattern, which resembles the parent structures 1,6-di-amino-hexane and hexane-1,6-di-phospho-nic acid.
机译:标题盐的不对称单元[H3N(CH2)6NH3] [(HO)O2P(CH2)6PO2(OH)]由一半的己烷-1,6-二铵阳离子和一半的己烷- 1,6-二基双-(膦酸氢根)二价阴离子。两者都位于空间群P21 / c的不同反转中心(威科夫站点:2a和2d)周围。最好将己烷1,6-二铵阳离子的形状描述为双钩。从中心的四个C原子的平面上看去,两个铝基团以及两个连接的CH2基团。相反,二价阴离子的所有六个C原子几乎都在一个平面上。阴离子的膦酸氢根(–PO3H)和阳离子的铵基形成二维OH?和与AC平面平行的O?H?N氢键网络,分别由带有图集描述符R33(10)和R54(12)的十元和十二元环基序构成。这些网络通过阴离子和阳离子的亚烷基链连接。所得的三维网络显示出人字形图案,类似于母体结构1,6-二氨基-己烷和己烷-1,6-二膦酸。

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