Molecular and crystal structure of 3-(4-chlorophenylthio)-1-(2,4-dinitrophenylamino)-pyrrolidine-2,5-dione

Article abstract of DOI:10.1007/BF01221893

3-(4-Chlorophenylthio)-1-(2,4-dinitrophenylamino)-pyrrolidine-2,5-dione, C16H11N4ClO6S, was obtained in the addition reaction of 4-chlorobenzenethiol and 2,4-dinitrophenyl-aminomaleimide.It forms orthorhombic crystals; the final R = 0.048 for 1083 unique observed reflections.The molecule consists of three rigid rings connected by single bonds.A synclinal conformation of the terminal phenyl rings (A and C) with respect to the central pyrrolidine ring (B) is observed in the crystal, with rings A and C close to one another.An intramolecular hydrogen bond N(2) ...O(4) of 2.593(7) Angstroem is observed.The structure of the title compound was also investigated by IR, 1H-NMR and M.S.