Mohamed Shaaban Kamel, Horton Peter N, Akkurt Mehmet, Albayati Mustafa R, Potgeiter Herman
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1251-2. doi: 10.1107/S1600536812012731. Epub 2012 Mar 31.
In the title compound, C(21)H(20)N(2)O(4), the naphthalene ring system makes a dihedral angle of 84.5 (3)° with the benzene ring, and the -C(=O)-N(H)-N(H)-C(=O)- torsion angle is 70.7 (7)°, so that the mol-ecule is twisted. An S(6) ring motif is formed via an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds into supra-molecular layers in the ab plane.
在标题化合物C₂₁H₂₀N₂O₄中,萘环体系与苯环形成的二面角为84.5 (3)°,-C(=O)-N(H)-N(H)-C(=O)-扭转角为70.7 (7)°,使得分子呈扭曲状。通过分子内O-H⋯O氢键形成了一个S(6)环模式。在晶体中,分子通过N-H⋯O和C-H⋯O氢键连接成ab平面上的超分子层。