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2,7-Dimethoxy-1-(4-nitrobenzoyl)-naphthalene

2010; International Union of Crystallography; Volume: 66; Issue: 3 Linguagem: Inglês

10.1107/s1600536810005398

1600-5368

Shôji Watanabe, Kosuke Nakaema, Takahiro Nishijima, Akiko Okamoto, Noriyuki Yonezawa,

Structural and Chemical Analysis of Organic and Inorganic Compounds

In the title compound, C(19)H(15)NO(5), the dihedral angle between the naphthalene ring system and the benzene ring is 61.97 (5)°. The dihedral between the naphthalene ring system and the bridging carbonyl C-C(=O)-C plane is 54.68 (6)°, far larger than that [12.54 (7)°] between the phenyl group and the bridging carbonyl group. The nitro group and the phenyl ring are almost coplanar [O-N-C-C torsion angle = 2.94 (19)°]. In the crystal, mol-ecules are linked by C-H⋯π inter-actions and the phenyl rings are involved in a centrosymmetric π-π inter-action with a perpendicular distance of 3.523 Å and a lateral offset of 1.497 Å. In addition, weak inter-molecular C-H⋯O hydrogen bonds are formed between an H atom of one meth-oxy group and a nearby carbonyl O atom.