Acta Cryst. (2012). E68, o3473
[ doi:10.1107/S1600536812047988 ]

3-(2-Ethyl-2-phenylhydrazin-1-ylidene)indolin-2-one

U. Ashiq, R. A. Jamal, H. Ismail, K. M. Khan and S. Yousuf

Abstract: In the title compound, C₁₆H₁₅N₃O, the dihedral angle between the indole ring system (r.m.s. deviation = 0.020 Å) and the phenyl ring is 14.49 (9)°. The molecular conformation is supported by an intramolecular C-HO interaction, which closes an S(7) ring. In the crystal, inversion dimers linked by pairs of N-HO hydrogen bonds generate R₂²(8) loops.

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