Collect. Czech. Chem. Commun. 1989, 54, 2408-2414

Crystal structure of N-(2,6-dimethylphenyl)chloromaleinimide

Viktor Vrábela, Eleonóra Kellöa, Jan Lokaja and Václav Konečnýb

a Department of Analytical Chemistry, Slovak Technical University, 812 37 Bratislava
b Research Institute of Chemical Technology, 831 06 Bratislava


The crystal structure of N-(2,6-dimethylphenyl)chloromaleinimide solved by the heavy atom method was refined by the 9 x 9 block-diagonal matrix least-squares method to a final R value 0.08 for 1 147 observed diffractions. The compound crystallizes in the orthorhombic system with Pbca group and lattice parameters a = 13.622(4), b = 13.483(7), c = 12.768(6) Å, Z = 8. Monomeric units, between which interactions of type Cl···H-C and O···H-C occured, formed the crystal structure. Both moieties of the molecule, i.e. the phenyl and the five-membered maleinimide rings were found to be virtually planar and the central planes intersecting these rings form an angle 78.3°.