Crystal structure of (E)-2-[(4-chloro-2H-chromen-3-yl)methylidene]-N-cyclohexylhydrazinecarbothioamide

Abstract

In the title compound, C17H20ClN3OS, the mean plane of the central thiourea core makes dihedral angles of 26.56 (9) and 47.62 (12)° with the mean planes of the chromene moiety and the cyclohexyl ring, respectively. The cyclohexyl ring adopts a chair conformation. The N–H atoms of the thiourea unit adopt an anti conformation. The chromene group is positioned trans, whereas the cyclohexyl ring lies in the cis position to the thione S atom, with respect to the thiourea C—N bond. In the crystal, molecules are linked by N—H...S hydrogen bonds, forming inversion dimers enclosing R22(8) ring motifs. The dimers are linked by C—H...Cl hydrogen bonds, enclosing R66(44) ring motifs, forming sheets lying parallel to (010).

Keywords

• crystal structure
• chromene
• hydrazine
• thioamide
• cyclohexyl
• hydrogen bonds