4,5,6,7-Tetrachloro-3-(cyclohepta-1,3,6-trien-1-yl)-3-hydroxy-2-(2-hydroxyethyl)-2,3-dihydro-1H-isoindol-1-one

Abstract

Key indicators: single-crystal X-ray study; T = 100 K; mean (C-C) = 0.003 Å; disorder in main residue; R factor = 0.047; wR factor = 0.130; data-to-parameter ratio = 18.3.In the title compound, C 17 H 13 Cl 4 NO 3 , the isoindole unit is essentially planar. The seven-membered ring adopts a boat conformation. The O atom of the hydroxyethyl group is disordered over two positions with essentially equal occupancies. In the crystal structure, the molecules are linked by O-HÁ Á ÁO and O-HÁ Á ÁCl hydrogen bonds into a two-dimensional network parallel to the (010) plane.