1-[(2E)-3-Phenylprop-2-en-1-yl]-1H-indole-2,3-dione

Abstract

In the title compound, C 17 H 13 NO 2 , the indole ring is essentially planar (r.m.s. deviation = 0.027 Å ) and is oriented at an angle of 69.33 (7) with respect to the phenyl ring. In the crystal, C-HÁ Á ÁO hydrogen bonds link the molecules, forming zigzag chains propagating along the a-axis direction. Within the chains there are -stacking interactions [centroid-centroid distances = 3.7163 (8) and 3.7162 (8) Å ] involving isatin groups of neighbouring molecules.