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.
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