Перевод заглавия: Тиобарбитуровая и барбитуровая соли пефлоксацина: Синтез, структура, термическая стабильность и ИК-спектры
Кл.слова (ненормированные):
Thiobarbituric acid -- Barbituric acid -- Pefloxacin -- X-ray diffraction -- Infrared spectroscopy -- Salts -- Thermal stability
Аннотация: Three new salts of pefloxacin (PefH) with thiobarbituric (H2tba) and barbituric (H2ba) acids, pefloxacinium 2-thiobarbiturate trihydrate, PefH2(Htba)·3H2O (1), pefloxacinium 2-thiobarbiturate, PefH2(Htba) (2) and bis(pefloxacinium barbiturate) hydrate, (PefH2)2(Hba)2·2.56H2O (3) are synthesized and structurally characterized by the X-ray single-crystal diffraction. The structures of 1–3 contain intramolecular hydrogen bonds C–H⋯F, O–H⋯O. Intermolecular hydrogen bonds N–H⋯O and O–H⋯O form a 2D plane network in 1. In 2 and 3, intermolecular hydrogen bonds N–H⋯O form the infinite chains. In 1–3, the Htba− and Hba− ions are connected with PefH2 + only by one intermolecular hydrogen bond N–H⋯O. In 2 and 3, two Htba− and Hba− ions are connected by two hydrogen bonds N–H⋯O. These pairs form infinite chains. All three structures are stabilized by the π−π interactions of the head-to-tail type between PefH2 + ions. Compounds 2 and 3 are characterized by powder XRD, TG-DSC and FT-IR.
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Держатели документа:
Siberian Federal University, 79 Svobodny Ave.Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Bld. 38 Akademgorodok 50Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, 47 Seryshev Str.Khabarovsk, Russian Federation
Laboratory of Physical Chemistry, Irkutsk Favorsky Institute of Chemistry, SB RAS, 1 FavorskyIrkutsk, Russian Federation
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RASNovosibirsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State UniversityNovosibirsk, Russian Federation
Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.; Sterkhova, I. V.; Atuchin, V. V.