The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Ethyl 2-{[7-fluoro-4-oxo-3-(1H-1,2,4-triazol-1-yl)-4H-thiochromen-2-yl]sulfanyl}acetate》. Authors are Li, Yang; Xiao, Tao; Yu, Guang Yan; Liu, Dong Liang.The article about the compound:1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanonecas:86404-63-9,SMILESS:FC1=CC=C(C(CN2N=CN=C2)=O)C(F)=C1).Related Products of 86404-63-9. Through the article, more information about this compound (cas:86404-63-9) is conveyed.
In the title compound, C15H12FN3O3S2, the two six-membered rings are essentially coplanar, their mean planes making a dihedral angle of 1.1 (2)°. The carbonyl C, the two attached non-fused C atoms and the S atom deviate from the plane of the benzene ring by -0.046 (5), -0.017 (5), 0.000 (6), 0.026 (4) Å, resp. The angle between the mean planes of the triazole ring and the sulfur heterocycle is 53.3 (1)°. In the crystal, intermol. C-H…O hydrogen bonds link the mols. in a stacked arrangement along the a axis. Crystallog. data are given.
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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics