5,6-Dichloro-2-(2-hydroxyphenyl) isoindoline-1,3-dione

Abstract

In the molecule of the title compound, C14H7Cl2NO3, the phthalimide ring system is virtually planar, with a dihedral angle between the fused five- and six-membered rings of 4.02 ( 3)degrees. In the crystal structure, intermolecular C-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds and C-Cl center dot center dot center dot O close contacts [ Cl center dot center dot center dot O = 3.0123 ( 13) angstrom and C-Cl center dot center dot center dot O = 171.14 ( 7)degrees] link the molecules, generating R-2(2)(16), R-4(2)( 19) and R-4(4)( 22) ring motifs by C( 6) chains to form a three-dimensional network. A weak pi-pi interaction between the six-membered rings of the phthalimide ring systems further stabilizes the structure, with a centroid-centroid distance of 3.666 ( 3) angstrom and an interplanar separation of 3.568 angstrom.