organic compounds
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The title compound, C20H19Cl2N5O2S, was obtained from the reaction of 4-chlorobenzoyl isothiocyanate with diethylenetriamine. The imidazolidine ring is slightly twisted with an N—C—C—N torsion angle of 15.4 (4)°, while the thiourea moiety maintains its trans–cis geometry. The molecule is stabilized by intramolecular N—HO hydrogen bonds. The crystal structure features N—HO, N—HS and C—HO hydrogen bonds and π–π interactions between benzene rings with a centroid–centroid distance of 3.607 (3) Å.