Karadayı Nevzat, Köysal Yavuz, Sahin Songül, Coşkun Emine, Büyükgüngör Orhan
Yeşilyurt Demir Celik Higher Vocational School, Ondokuz Mayıs University, TR-55300 Samsun, Turkey.
Acta Crystallogr Sect E Struct Rep Online. 2013 May 15;69(Pt 6):o889. doi: 10.1107/S1600536813012518. Print 2013 Jun 1.
In the title compound, C19H12Cl2N2O4, the imine bond length of 1.257 (6) Å is typical of a double bond. The dihedral angle between the para-nitro benzene ring and the central benzene ring is 12.06 (3)° and that between the central benzene and the para-chloro benzene ring is 73.81 (2)°. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked together by two pairs of C-H⋯O interactions (to the same O atom acceptor), forming inversion dimers. A short Cl⋯Cl contact [3.232 (4) Å] is observed.
在标题化合物C₁₉H₁₂Cl₂N₂O₄中,亚胺键长为1.257(6) Å,这是典型的双键键长。对硝基苯环与中心苯环之间的二面角为12.06(3)°,中心苯环与对氯苯环之间的二面角为73.81(2)°。分子内O—H⋯N氢键形成了一个S(6)环模式。在晶体中,分子通过两对C—H⋯O相互作用(与同一个O原子受体)连接在一起,形成了反演二聚体。观察到一个短的Cl⋯Cl接触[3.232(4) Å]。