CRYSTAL STRUCTURE OF NORFLOXACINIUM AND 2,2 '-BIPYRIDYL-1 '-IUM 2-THIOBARBITURATES : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S0022476620100170

Ключевые слова: 2,2 '-dipyridynium and norfloxacinium 2-thiobarbiturates, synthesis, structure, thermal stability, 2,2?-dipyridynium and norfloxacinium 2-thiobarbiturates

Аннотация: Organic salts with the composition NfH(2)(Htba)center dot 6H(2)O (I) and BipyH(Htba)center dot 2H(2)O (II) (H(2)tba 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) angstrom, b Показать полностью= 11.9959(5) angstrom, c = 12.0038(4) angstrom, alpha = 119.835(1)degrees, beta = 107.691(1)degrees, gamma = 95.237(1)degrees, V = 1351.80(9) angstrom(3), space group P-1, Z = 2. Crystals II are monoclinic: a = 7.9587(2) angstrom, b = 19.6272(4) angstrom, c = 10.1118(2) angstrom, beta = 98.118(1)degrees, V = 1563.71(6) angstrom(3), space group P2(1)/n, Z = 4. The structures are stabilized by numerous hydrogen bonds and pi-pi interactions involving Htba(-), NfH(2)(+), and BipyH(+) ions. Thermal decomposition of these compounds in air includes dehydration and oxidative degradation stages.

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Издание

Журнал: JOURNAL OF STRUCTURAL CHEMISTRY

Выпуск журнала: Vol. 61, Is. 10

Номера страниц: 1639-1647

ISSN журнала: 00224766

Место издания: NEW YORK

Издатель: PLEIADES PUBLISHING INC

Персоны

  • Golovnev N.N. (Siberian Fed Univ, Krasnoyarsk, Russia)
  • Molokeev M.S. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia; Far Eastern State Transport Univ, Khabarovsk, Russia)
  • Sterkhova I.V (Russian Acad Sci, Favorsky Inst Chem, Siberian Branch, Irkutsk, Russia)
  • Lesnikov M.K. (Siberian Fed Univ, Krasnoyarsk, Russia)

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