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Journal of Structural Chemistry

2011 year, number 4


Y. M. Chumakov, V. I. Tsapkov, B. Y. Antosyak, A. P. Gulya, S. A. Palomares-sanches
Keywords: hiadiazole, thiosemicarbazone of pyruvic acid, biological activity
Pages: 850-853


The crystal structure of 5-methyl-N-phenyl-1,3,4-thiadiazole-2-amine (I) is determined. The molecule of compound I is non-planar; the mean square plane of its phenyl cycle is located at an angle of 22.8°with respect to the planar thiadiazole fragment. The studied compound forms infinite chains in the crystal due to the translation along a, in which the molecules are bound by N-H…N and C-H…N bonds. Along with the van der Waals interaction, there is also a X-H…Cg (π ring) interaction between the chains in the crystal.