organic compounds
Open access
There are three independent molecules in the asymmetric unit of the title compound, C12H15Br3O3, two of which have approximate trigonal symmetry, the third being conformationally different as it adopts near mirror symmetry. The crystal structure features C—HBr interactions, a weak C—HO hydrogen bond, π–π interactions [minimum ring centroid separation = 3.4927 (18) Å] and a short BrBr contact [3.5894 (5) Å], resulting in a three-dimensional supramolecular network.
organic compounds
Open access
The title molecule, C36H27N3O9, adopts an almost symmetric conformation in which the mean planes of the phthalimido units are inclined at dihedral angles of 81.1 (1), 85.3 (1) and 86.3 (1)° with respect to the plane of the central aromatic ring. The O atoms are involved in intra- and intermolecular C—HO hydrogen bonding. The crystal structure also features π–π arene interactions [minimum ring centroid separation = 3.683 (2) Å]. The present mode of non-covalent interactions leads to a three-dimensional supramolecular architecture.