A water soluble flavonoid sulfate, [Ni(H2O)6](C19H17O9S)2·2H2O was synthesized and its structure was determined by single-crystal X-ray diffraction analysis. The crystal of it belongs to triclinic crystal system, space group P–1. The results show that the title compound consists of [Ni(H2O)6]2+, C19H17O6SO3 − and H2O. Ni(II) is located on the symmetry center and octahedrally coordinated by six water molecules. A variety of hydrogen bonds among [Ni(H2O)6]2+, C19H17O6SO3 − and the lattice water molecules build a hydrophilic region. Aromatic π–π stacking interactions assemble isoflavone skeletons into a column and the columns form a hydrophobic region of the title compound. The sulfo-groups bridge the hydrophilic regions and the hydrophobic regions as well as the inorganic components and organic components. Hydrogen bonds, \(\pi \cdots \pi\) stacking interactions and the electrostatic interactions between cation [Ni(H2O)6]2+ and anion sulfonate C19H17O6SO3 − lead the moieties to a three-dimensional structure.
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Supplementary material CCDC-284891 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge at www.ccdc.cam.ac.uk/conts/retrieving.html [or from the Cambridge Crystallographic Data Centre (CCDC), 12 Union Road, Cambridge CB2 1EZ, UK; fax: 44(0)1223-336033; e-mail: deposit@ccdc.cam.ac.uk].
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Zhang, ZT., Zhang, XL. & He, Y. Synthesis and crystal structure of [Ni(H2O)6](C19H17O9S)2·2H2O. J Chem Crystallogr 36, 517–522 (2006). https://doi.org/10.1007/s10870-006-9074-8
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DOI: https://doi.org/10.1007/s10870-006-9074-8