Synthesis, Characterization, and Crystal Structure of [3,3':3',3''-Terindolin]-2'-One Bis(dimethyl Sulfoxide)

• Published in: Crystallography reports Vol. 65; no. 7; pp. 1187 - 1190
• Main Authors: Sharma, V., Begam, S., Nurjamal, K., Brahmachari, G., Gupta, V. K.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2020
• Subjects: Crystallography and Scattering Methods; Physics; Physics and Astronomy; Structure of Organic Compounds
• ISSN: 1063-7745; 1562-689X
• DOI: 10.1134/S1063774520070159

The indole derivative [3,3':3',3''-terindolin]-2'-one bis(dimethyl sulfoxide), C 24 H 17 N 3 O ⋅ 2(C 2 H 6 OS) has been synthesized using green protocol in 89% yield, and its crystal structure is determined by X-ray structure analysis. The crystals are monoclinic, space group P 2 1 / n , Z = 4. Bicyclic indole moieties form dihedral angle of 60.32° with each other; the oxindole ring is twisted with respect to them at angles of 86.08° and 76.93°. The crystal structure is stabilized by N–H⋅⋅⋅O, N–H⋅⋅⋅S, and C–H⋅⋅⋅O hydrogen bonds involving both DMSO solvate molecules.