title: 2-Nitro-p-phenyl-ene bis-(toluene-sulfonate).
abstract: In the mol-ecule of the title compound, C(20)H(17)NO(8)S(2), the two toluene rings are oriented at a dihedral angle of 3.65 (4)°, while the nitrophenyl ring is oriented at dihedral angles of 44.39 (3) and 47.44 (3)° with respect to the toluene rings. An intra-molecular C-H⋯O hydrogen bond results in the formation of a five-membered ring, which adopts an envelope conformation. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules. There is a π-π contact between the toluene rings [centroid-centroid distance = 4.035 (1) Å].
authors.forename: Xiujie
authors.initials: X
authors.lastname: Ji
authors.forename: Bowen
authors.initials: B
authors.lastname: Cheng
authors.forename: Jun
authors.initials: J
authors.lastname: Song
authors.forename: Chao
authors.initials: C
authors.lastname: Liu