Marchewka M K, Pietraszko A
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wrocław 2, P.O. Box 937, Poland.
Spectrochim Acta A Mol Biomol Spectrosc. 2008 Feb;69(2):312-8. doi: 10.1016/j.saa.2007.03.047. Epub 2007 Apr 19.
The piperazinium bis(4-hydroxybenzenesulphonate) crystallizes from water solution at room temperature in P2(1)/c space group of monoclinic system. The crystals are built up of doubly protonated piperazinium cations and ionized 4-hydroxybenzenesulphonate anions that interact through weak hydrogen bonds of O-H...O and N-H...O type. Mutual orientation of anions is determined by non-conventional hydrogen bonds of C-Hcdots, three dots, centeredpi type. Room temperature powder FT IR and FT Raman measurements were carried out. The vibrational spectra are in full agreement with the structure obtained from X-ray crystallography. The big single crystals of the title salt can be grown.
哌嗪双（4 - 羟基苯磺酸盐）在室温下从水溶液中结晶，属于单斜晶系的P2(1)/c空间群。晶体由双质子化的哌嗪阳离子和离子化的4 - 羟基苯磺酸根阴离子组成，它们通过O - H...O和N - H...O型的弱氢键相互作用。阴离子的相互取向由C - H···（三点）中心π型的非常规氢键决定。进行了室温粉末傅里叶变换红外光谱（FT IR）和傅里叶变换拉曼光谱（FT Raman）测量。振动光谱与从X射线晶体学获得的结构完全一致。可以生长出该标题盐的大单晶。
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