Nishijima Takahiro, Kataoka Kotaro, Nagasawa Atsushi, Okamoto Akiko, Yonezawa Noriyuki
Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, 2-24-16 Naka-machi, Koganei, Tokyo 184-8588, Japan.
Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 23;66(Pt 11):o2904-5. doi: 10.1107/S1600536810041346.
The title compound {systematic name: 8-(4-aminobenzoyl)-2,7-dimethoxynaphthalen-1-ylmethanone}, C(26)H(22)O(4)N(2), possesses crystallographically imposed twofold symmetry, with two C atoms lying on the rotation axis. In the crystal, the mol-ecules inter-act through inter-molecular N-H⋯O hydrogen bonds between the amino and meth-oxy groups on the naphthalene ring systems and N-H⋯π inter-actions between the amino groups and the naphthalene rings. Furthermore, weak C-H⋯O hydrogen bonds and π-π stacking inter-actions between the benzene rings are observed. The centroid-centroid and inter-planar distances between the benzene rings of the aroyl group and the naphthalene ring systems of adjacent mol-ecules are 3.6954 (8) and 3.2375 (5) Å, respectively. The dihedral angle between the mean planes of the benzene ring and the naphthalene ring system is 83.59 (5)°. The benzene ring and the carbonyl group in the benzoyl unit are almost coplanar [C-C-C-O torsion angle = 175.91 (10)°].
标题化合物{系统命名：8-(4-氨基苯甲酰基)-2,7-二甲氧基萘-1-基甲酮}，C(26)H(22)O(4)N(2)，具有晶体学上的二重对称性，有两个C原子位于旋转轴上。在晶体中，分子通过萘环系统上氨基和甲氧基之间的分子间N-H⋯O氢键以及氨基与萘环之间的N-H⋯π相互作用相互作用。此外，还观察到苯环之间的弱C-H⋯O氢键和π-π堆积相互作用。相邻分子的芳酰基苯环与萘环系统的苯环之间的质心-质心距离和平面间距离分别为3.6954 (8)和3.2375 (5) Å。苯环平均平面与萘环系统之间的二面角为83.59 (5)°。苯甲酰基单元中的苯环与羰基几乎共面[C-C-C-O扭转角 = 175.91 (10)°]。
