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- Title
Synthesis, hydrogen bond interactions and crystal structure elucidation of some stable 2H-imidazolium salts.
- Authors
Al-Sheikh, Ahmed; Mallah, Eyad; Sweidan, Kamal; Abualassal, Qais; Abudayeh, Zead; Abu-Qatouseh, Luay; Steimann, Manfred
- Abstract
Reaction of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (1) with phthalimide, quinazolinedione, thiophenole and 4-pyridinethiole led to the formation of the hydrogen-bonded salts, imidazolium phthalimide (2), imidazolium quinazolinedione (3), imidazolium thiophenolate (4) and imidazolium 4-pyridinethiolate (5), respectively, in good yield. In crystals of 2, the anion is linked to the imidazolium cation by a C–H···O hydrogen bond, while in 3 and 5 C–H···N hydrogen bonds are observed. In 4, the imidazolium ion is linked to the anion by C–H···S hydrogen bonds. In compounds 2, 3 and 5, the interionic hydrogen bonds are close to linearity, while the interionic hydrogen bond angle in 4 is 148.5(9)°.
- Subjects
HYDROGEN bonding interactions; CRYSTAL structure; HYDROGEN bonding; BOND angles
- Publication
Zeitschrift für Naturforschung B: A Journal of Chemical Sciences, 2022, Vol 77, Issue 1, p25
- ISSN
0932-0776
- Publication type
Article
- DOI
10.1515/znb-2021-0132