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Tetrel, Chalcogen, and Charge-Assisted Hydrogen Bonds in 2-((2-Carboxy-1-(substituted)-2-hydroxyethyl)thio) Pyridin-1-ium Chloridesстатья
- Авторы: Guseinov Firudin I., Pistsov Mikhail F., Movsumzade Eldar M., Kustov Leonid M., Tafeenko Victor A., Chernyshev Vladimir V., Gurbanov Atash V., Mahmudov Kamran T., Pombeiro Armando J.L.
- Журнал: Crystals
- Том: 7
- Номер: 11
- Год издания: 2017
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- DOI: 10.3390/cryst7110327
- Аннотация: Reaction of 2-chloro-2-(diethoxymethyl)-3-substitutedoxirane or 1-chloro-1-(substituted) -3,3-diethoxypropan-2-one with pyridine-2-thiol in EtOH at 25 degrees C yields 3-(diethoxymethyl)-3-hydroxy-2-substituted-2,3-dihydrothiazolo[3,2-a]pyridin-4-ium chlorides, which subsequently, in MeCN at 85 degrees C, transforms into ring-opening products, 2-((2-carboxy-1-(substituted) -2-hydroxyethyl)thio)pyridin-1-ium chlorides. The tetrel (C center dot center dot center dot <bold>O</bold>) and chalcogen (S center dot center dot center dot <bold>O</bold>) bonds are found in the structures of 5 and 6, respectively. Compound 6 is also present in halogen bonding with a short O center dot center dot center dot <bold>Cl distance </bold>(3.067 angstrom). Both molecules are stabilized in crystal by tetrel, chalcogen, and multiple charge-assisted hydrogen bonds.
- Добавил в систему: Тафеенко Виктор Александрович