Research Article: Dimethyl 4,5-dichlorobenzene-1,2-dicarboxyl­ate

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Yongling Sun.


In the title compound, C10H8Cl2O4, the two Cl atoms and one of the meth­oxy­carbonyl groups are almost coplanar [maxi­mum derivation = 0.035 (2) Å] with the benzene plane, and the other meth­oxy­carbonyl group exhibits an almost orthogonal disposition relative to the benzene plane, with a dihedral angle of 84.82 (3)° between the planes. In the crystal, the molecules are connected into a chain propagating along the [011] direction through nonclassical C—H⋯O hydrogen bonds.

Partial Text

For the chemical properties and structural nature nature of some related benzene­carboxyl­ate derivatives, see: Galešić et al. (1984 ▶); Liang et al. (2004 ▶); Mallinson et al. (2003 ▶); Rauf et al. (2008 ▶).