Synthesis and crystal structure of ethyl 2-(1,3-benzothiazol-2-yl)-1-oxo-1 H -pyrido[2,1- b ][1,3]benzothiazole-4-carboxylate
Year: 2026
Type: article
Abstract: The molecule of the title compound, C 21 H 14 N 2 O 3 S 2 , is approximately planar except for the terminal carbon atom of the ethyl group. The planarity is promoted by two short intramolecular S...O=C contacts and one intramolecular ‘weak' C—H...O=C hydrogen bond. The two thiazole rings show some appreciable differences in bond lengths and angles, associated with their different annelation patterns. The molecular packing involves one ‘weak' hydrogen bond of the type C—H...O=C, which links the molecules in zigzag chains via a 2 1 screw axis along [010]. Additionally, ‘stacked' pairs of molecules, necessarily with parallel ring systems, are related by an inversion operator, and two π contacts C—H...π and C=O...π are observed.
Institutions: Helwan University, Technische Universität Braunschweig
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $500
OpenAlex ID: W7125240710
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