(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.