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2-Methyl-8-oxyquinolinium dicitratoborate dihydrate: Synthesis and crystal structure

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Abstract

2-Methyl-8-oxyquinolinium dicitratoborate dihydrate [(2-CН3)(8-OH)C6H5NH][(C6H5O7)2B] ∙ 2H2O (I) was synthesized for the first time. Single crystals were synthesized in an aqueous solution, and their crystal structure was studied by X-ray diffraction. Crystals were triclinic, space group P \(\bar 1\), a = 9.3454(2) Å, b = 9.8522(2) Å, c = 15.6638(4) Å, α = 78.489(1)°, β = 77.255(1)°, γ = 63.622(2)°, FW = 587.25, V = 1251.68(5) Å3, Z = 2, ρcalc = 1.558 g/cm3. The structure was refined by the full-matrix least-squares technique to R1 = 0.045 for 4689 independent reflections with R int = 0.072. Crystal structure units in complex I were large complex dicitratoborate anions with a spirane structure, 2-methyl-8-oxyquinolinium cations [(2-CН3)(8-OH)C6H5NH]+, and two crystallization water molecules. The crystal packing was layered and three-dimensional. The network of hydrogen bonds in crystals was created by seven independent three-center O–H···O contacts.

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Correspondence to I. I. Zviedre.

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Original Russian Text © I.I. Zviedre, S.V. Belyakov, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 7, pp. 866–872.

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Zviedre, I.I., Belyakov, S.V. 2-Methyl-8-oxyquinolinium dicitratoborate dihydrate: Synthesis and crystal structure. Russ. J. Inorg. Chem. 61, 826–832 (2016). https://doi.org/10.1134/S0036023616070226

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  • DOI: https://doi.org/10.1134/S0036023616070226

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