Title

Crystal structure of 2,3-dimethylmaleic anhydride: continuous chains of electrostatic attraction

Abstract

In the crystal structure of 2,3-di­methyl­maleic anhydride, C6H6O3, the closest non-bonding inter­molecular distances, between the carbonyl C and O atoms of neighboring mol­ecules, were measured as 2.9054 (11) and 3.0509 (11) Å, which are well below the sum of the van der Waals radii for these atoms. These close contacts, as well as packing motifs similar to that of the title compound, were also found in the crystal structure of maleic anhydride itself and other 2,3-disubstituted maleic anhydrides. Computational modeling suggests that this close contact is caused by strong electrostatic inter­actions between the carbonyl C and O atoms.

Publisher

International Union of Crystallography

Publication Date

8-1-2015

Publication Title

Acta Crystallographica Section E: Crystallographic Communications

Department

Chemistry and Biochemistry

Document Type

Article

DOI

10.1107/S2056989015013419

Keywords

Crystal structure, Maleic anhydride, Carbonyl-carbonyl interactions

Language

English

Format

text

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