Download citation
Download citation

link to html
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.

Download citation
Download citation

link to html
In the title compound, C36H28O4, the two 2-naphthoyl groups at the 1- and 8-positions of the central 2,7-dieth­oxy­naphthalene ring system are aligned almost anti­parallel and make a dihedral angle of 48.35 (5)°. The dihedral angles between the central 2,7-dieth­oxy­naphthalene ring system and the terminal naphthalene ring systems are 77.64 (4) and 73.73 (4)°. In the crystal, mol­ecules are linked into chains along the a-axis direction by dual C—H...O inter­actions between naphthoyl groups.

Download citation
Download citation

link to html
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.

Download citation
Download citation

link to html
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.

Download citation
Download citation

link to html
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).
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds