(3Z)-5-Chloro-3-(hy-dr-oxy-imino)-indolin-2-one

摘要

In the title compound, C8H5ClN2O2?(common name: 5-chloro-isatin 3-oxime), the mol-ecular structure deviates slightly from the ideal planarity, with a maximum deviation of 0.0478?(8)?? for the non-H atoms. In the crystal, mol-ecules are linked by N—H?O inter-actions, building centrosymmetric dimers with graph-set motif?R22(8). Additionally, the mol-ecules are connected by pairs of O—H?O inter-actions into chains along [100] with a?C(6) motif. The hydrogen-bonded dimers and chains build a two-dimensional network parallel to (100). The packing also features?π–π?stacking inter-actions between benzene rings [centroid–centroid distance = 3.748?(2)??].