The crystal structure of 5-(3-methoxyphenyl)indoline-2,3-dione (C15H11NO3) was solved and refined using laboratory powder diffraction data and optimized using density functional techniques. The title compound crystallizes in space group Pbca with a = 11.1772(3) Å, b = 7.92536(13) Å, c = 27.0121(7) Å, and V = 2392.82(10) Å3. The asymmetric unit contains one molecule. Isatin molecules are joined into almost flat chains along the a direction by N–H⋯O bonds. The chains are linked into layers by π-stacking interactions. Finally, the third dimension of the crystal is formed by weaker C–H⋯π and C–H⋯O contacts.

使用实验室粉末衍射数据解析和精炼5-(3-甲氧基苯基)二氢吲哚-2,3-二酮 (C 15 H 11 NO 3 ) 的晶体结构，并使用密度泛函技术进行优化。标题化合物在Pbca空间群中结晶，a = 11.1772(3) Å，b = 7.92536(13) Å，c = 27.0121(7) Å，V = 2392.82(10) Å 3。不对称单元包含一个分子。靛红分子通过 N–H⋯O 键沿a方向连接成几乎扁平的链。这些链通过 π 堆积相互作用连接成层。最后，晶体的第三维由较弱的 C–H⋯π 和 C–H⋯O 接触形成。