journal menu
organic compounds
Open 
access
access
In the molecule of the title compound, C28H22F2O4, the benzoyl groups are aligned almost antiparallel and the fluorobenzene rings form a dihedral angle of 14.12 (7)°. The dihedral angles between the 2,7-diethoxynaphthalene ring system and the benzene rings are 70.00 (4) and 67.28 (4)°. In the crystal, molecules are linked by C—H
O and C—HF hydrogen bonds, forming layers parallel to the ab plane. The layers are further connected by π–π interactions [centroid–centroid distances of 3.6115 (10) Å] into a three-dimensional structure.
O and C—HF hydrogen bonds, forming layers parallel to the ab plane. The layers are further connected by π–π interactions [centroid–centroid distances of 3.6115 (10) Å] into a three-dimensional structure.organic compoundsOpen access
access
The title molecule, C30H28O6, possesses crystallographically imposed twofold symmetry, with two central C atoms in the naphthalene unit lying on the rotation axis along [001]. The 4-ethoxybenzoyl groups at the peri positions of the naphthalene ring system are disordered over two sets of sites with occupancies of 0.769 (4) and 0.231 (4). They are directed in opposite directions from the naphthalene plane (anti orientation). For the major component, the dihedral angle between the aroyl benzene ring and the naphthalene ring system is 75.62 (13)° [minor component 75.5 (4)°], and that between the aroyl benzene rings is 32.58 (15)°. In the crystal, molecules are linked via C—HO and C—Hπ interactions, forming a three-dimensional network.
O and C—Hπ interactions, forming a three-dimensional network.
