Synthesis and Crystal Structure of (3,6-Dichloro-2-nitrophenyl)(3-nitrophenyl)methanone

Novel compounds, (3,6-dichloro-2-nitrophenyl)(3-nitrophenyl)methanone(2), (2-amino-3,6-dichloro- phenyl)(3-aminophenyl)methanone(3) and 1-[3-(2-amino-3,6-dichlorobenzoyl)phenyl]-1H-pyrrole-2,5-dione(4), were synthesized from the initial compound 2,5-dichlorobenzophenone(1) and characterized by 1H NMR, 13C NMR, IR, mass spectrum and element analysis, respectively. The single crystal of compound 2 was obtained and determined by X-ray diffraction analysis. The single crystal data illustrates that it belongs to the monoclinic system, space group P21/c with a=0.7587(4) nm, b=2.4724(4) nm, c=0.8081(3) nm, α=90°, β=112.85(2)°, γ=90o, V=1.3970(9) nm3, Z=4, Dc=1.622 g/cm3, Mr(C13H6Cl2N2O5)=341.10, μ(Mo Kα)=0.49 mm?1, F(000)=688, the final R=0.048 and wR=0.144 for 1665 observed reflections with I>2σ(I). The title molecule forms a "T" type crystal structure and the dihedral angel of the two phenyl rings is 65.0(1)°.