Abstract
Organic salts with the composition NfH2(Htba)·6H2O (I) and BipyH(Htba)·2H2O (II) (Н2tba is 2-thiobarbituric acid, NfH is norfloxacin and Bipy is 2,2′-dipyridyl) are prepared. Their structures are determined by XRD (CCDC cif-file No. 1967494-1967495). Crystals I are triclinic: a = 11.8821(4) Å, b = 11.9959(5) Å, c = 12.0038(4) Å, α = 119.835(1)°, β = 107.691(1)°, γ = 95.237(1)°, V = 1351.80(9) Å3, space group P-1, Z = 2. Crystals II are monoclinic: a = 7.9587(2) Å, b = 19.6272(4) Å, c = 10.1118(2) Å, β = 98.118(1)°, V = 1563.71(6) Å3, space group P21/n, Z = 4. The structures are stabilized by numerous hydrogen bonds and π–π interactions involving Нtba−, \(\text{NfH}_{2}^{+}\), and BipyH+ ions. Thermal decomposition of these compounds in air includes dehydration and oxidative degradation stages.
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The reported study was funded by RFBR, project number 19-52-80003.
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Golovnev, N.N., Molokeev, M.S., Sterkhova, I.V. et al. CRYSTAL STRUCTURE OF NORFLOXACINIUM AND 2,2′-BIPYRIDYL-1′-IUM 2-THIOBARBITURATES. J Struct Chem 61, 1639–1647 (2020). https://doi.org/10.1134/S0022476620100170
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DOI: https://doi.org/10.1134/S0022476620100170