In the title compound, C13H10O4, prepared by the condensation reaction between phthalic anhydride and pentane-2,4-dione, one of the acetyl groups in the pentane-2,4-dione fragment is almost coplanar with the isobenzofuran ring system, while the other group is twisted out of this plane by almost 80 degrees. The corresponding C-C and C-O distances in the two acetyl units are consistent with dipolar delocalization into the coplanar unit only. There is no supramolecular aggregation of the molecules, but a number of rather short intermolecular contacts of C-H center dot center dot center dot O,O center dot center dot center dot O and O center dot center dot center dot C types occur.
|Number of pages
|Acta Crystallographica Section C-Crystal Structure Communications
|Published - Jun 2007