[2,7-Dimeth­oxy-8-(4-meth­oxy­benzo­yl)naphthalen-1-yl](4-meth­oxy­phen­yl)methanone chloro­form monosolvate

In the title compound, C₂₈H₂₄O₆·CHCl₃, the two 4-meth­oxy­benzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost anti­parallel, the benzene rings making a dihedral angle of 25.76 (7)°. The naphthalene ring system makes dihedral angles of 72.51 (7) and 73.33 (7)° with the benzene rings. In the crystal, the naphthalene mol­ecules are linked by C—H...O inter­actions, forming a helical chain along the b-axis direction. A C—H...Cl inter­action is also observed between the aroylated naphthalene and chloro­form mol­ecules. The chloro­form mol­ecule is disordered over two positions with site occupancies of 0.478 (5) and 0.522 (5).

[2,7-Dihy­droxy-8-(4-phen­oxy­benzo­yl)naphthalen-1-yl](4-phen­oxy­phen­yl)methanone

In the title compound, C₃₆H₂₄O₆, the benzoyl groups at the 1- and 8-positions of the naphthalene system are in an anti orientation. Both carbonyl groups form intra­molecular O—H...O hydrogen bonds with hy­droxy groups affording six-membered rings. The benzene rings of the benzoyl groups make dihedral angles of 59.26 (13) and 59.09 (13)° with the naphthalene ring system. Zigzag C—H...O chains and ladder C—H...O chains between the phenoxybenzoyl groups along the ab diagonals form an undulating checkered sheet. The molecules are further connected into a three-dimensional network by C—H...π interactions.

1-Benzoyl­naphthalene-2,7-diyl dibenzoate

In the title compound, C₃₁H₂₀O₅, the phenyl rings of the benzo­yloxy and benzoyl groups are twisted away from the naphthalene ring system by 64.27 (6), 73.62 (5) and 80.41 (6)°. In the crystal, C—H...O hydrogen bonds and C—H...π inter­actions link the mol­ecules, forming tubular chains parallel to the b axis. The chains are further connected into a three-dimensional network by C—H...π inter­actions and π–π stacking contacts [centroid–centroid distances = 3.622 (10)–3.866 (12) Å].

[8-(4-Phen­oxy­benzo­yl)-2,7-bis­(propan-2-yl­oxy)naphthalen-1-yl](4-phen­oxy­phen­yl)methanone

The entire title mol­ecule, C₄₂H₃₆O₆, is completed by the application of a twofold axis. The 4-phen­oxy­benzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost anti­parallel. The dihedral angle between the best planes of the benzene rings of the benzoyl moieties and the naphthalene ring system is 70.52 (5)° and that between the best planes of the benzene rings of the phen­oxy groups and the naphthalene ring system is 27.80 (6)°. In the crystal, mol­ecules are linked into a three-dimensional architecture by C—H...O and C—H...π inter­actions.

(2,7-Dimeth­oxy­naphthalen-1-yl)(4-meth­oxy­phen­yl)methanone

In the mol­ecule of the title compound, C₂₀H₁₈O₄, the dihedral angle between the naphthalene ring system and the benzene ring is 81.74 (5)°. An inter­molecular C—H...O inter­action is formed between an H atom at the 6-position of the naphthalene ring and the O atom of the meth­oxy group at the 7-position.

(8-Benzoyl-2,7-dimeth­oxy­naphthalen-1-yl)(4-phen­oxy­phen­yl)methanone

In the mol­ecule of the title compound, C₃₂H₂₄O₅, the benzoyl group and the 4-phenoxy substituted benzoyl group at the 1- and 8-positions of the naphthalene ring system are aligned almost anti­parallel. The two benzene rings make a dihedral angle of 21.18 (10)°, and are inclined to the naphthalene ring system by 86.53 (9) and 82.95 (8)°, respectively. In the crystal, C—H...O inter­actions are observed involving aromatic and meth­oxy H atoms with ketonic carbonyl O atoms, as well as C—H...π inter­actions between aromatic H atoms and the π-systems of naphthalene and benzene rings. These interactions form a three-dimensional architecture and afford a waved alignment of the naphthalene ring systems along the c axis.

(2,7-Dimeth­oxy­naphthalen-1-yl)(4-phen­oxy­phen­yl)methanone

In the title mol­ecule, C₂₅H₂₀O₄, the naphthalene and phen­oxy groups are oriented nearly perpendicular with respect to the benzene ring of the benzoyl group, with dihedral angles of 89.61 (5) and 86.13 (6)°, respectively. The crystal structure features C—H...O and C—H...π inter­actions.

{2,7-Dimeth­oxy-8-[4-(propan-2-yl­oxy)benzo­yl]naphthalen-1-yl}[4-(propan-2-yl­oxy)phen­yl]methanone

The title compound, C₃₂H₃₂O₆, crystallized with two independent molecules in the asymmetric unit. Each molecule has essentially the same feature of non-coplanar aromatic rings whereby the two 4-isopropoxybenzoyl groups are twisted in a perpendicular manner to the naphthalene ring and oriented in the same direction (syn-orientation). The benzene rings of the aroyl groups make dihedral angles of 16.13 (7) and 25.31 (7)° in the two molecules. These benzene rings make dihedral angles of 88.38 (8) and 75.32 (7)° with the naphthalene ring system in one molecule, and 89.71 (7) and 82.11 (7)° in the other. In the crystal, mol­ecules are linked via C—H...O hydrogen bonds, forming a three-dimensional network. In one independent molecule, the 2-propyl groups of both isoprop­oxy groups are disordered over two positions with site occupancies of 0.512 (3) and 0.488 (3).

(4-Eth­oxy­benzo­yl)[8-(4-eth­oxy­benzo­yl)-2,7-di­meth­oxy­naphthalen-1-yl]methanone

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—H...O and C—H...π inter­actions, forming a three-dimensional network.