In the triaryl-amine group of the title compound, C(26)H(20)N(2)O(2), the N atom adopts an approximately trigonal-planar geometry, lying 0.046 (5) Å from the plane P defined by its three neighbouring C atoms; the benzene and two terminal phenyl rings are twisted by 37.4 (1), 31.4 (1) and 47.8 (1)°, respectively from plane P. In the trans-stilbene fragment, the two benzene rings form a dihedral ...

In the title compound, C(15)H(16)N(2)O(4)S, there is a dihedral angle of 63.30 (8)° between the nitro-benzyl and benzene rings, which are separated by a sulfonamide unit The crystal packing is stabilized by a C-H⋯O inter-action.

The asymmetric unit of the title compound, C(17)H(17)ClN(2)O(2), contains one half-mol-ecule with a center of symmetry at the mid-point of the central C-C bond. The dihedral angle between the benzene ring and the adjacent NH-C(O)-CH(2) group is 39.9 (1)°. The methyl and Cl groups are disordered with respect to the para-positions of the benzene ring, with site-occupation factors of 0.5 each. In ...