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8217731 
Journal Article 
Synthesis, crystal structure and Hirshfeld surface analysis of N-(4-chlorophenyl)-5-cyclopropyl-1-(4-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide 
Pokhodylo, N; Slyvka, Y; Pavlyuk, V 
2020 
Acta Crystallographica Section E-Crystallographic Communications
ISSN: 2056-9890 
International Union of Crystallography 
76 
Pt 5 
756-760 
English 
32431947 
The title compound, C19H17ClN4O2, was obtained via a two-step synthesis involving the enol-mediated click Dimroth reaction of 4-azidoanisole with methyl 3-cyclopropyl-3-oxopropanoate leading to the 5-cyclopropyl-1-(4-methoxyphenyl)-1H-1,2,3-triazole-4-carboxylic acid and subsequent acid amidation with 4-chloroaniline by 1,1'-carbonyldiimidazole (CDI). It crystallizes in space group P21/n, with one molecule in the asymmetric unit. In the extended structure, two molecules arranged in a near coplanar fashion relative to the triazole ring planes are interconnected by N-H..N and C-H..N hydrogen bonds into a homodimer. The formation of dimers is a consequence of the above interaction and the edge-to-face stacking of aromatic rings, which are turned by 58.0 14;(3)° relative to each other. The dimers are linked by C-H..O interactions into ribbons. DFT calculations demonstrate that the frontier molecular orbitals are well separated in energy and the HOMO is largely localized on the 4-chlorophenyl amide motif while the LUMO is associated with aryltriazole grouping. A Hirshfeld surface analysis was performed to further analyse the intermolecular interactions. © 2020 International Union of Crystallography. All rights reserved. 
1,2,3-triazole; Crystal structure; DFT calculation; Hirshfeld surface analysis