(1E,2E)-1,2-Bis(2,2-diphenyl­hydrazin-1-yl­idene)ethane

In the crystal structure of the title compound, C26H22N4, the mol­ecule is located on an inversion centre and shows an E configuration with respect to each C=N bond. The dihedral angle between the phenyl rings in the diphenyl­hydrazone group is 83.69 (11)°. These two rings make dihedral angles of 30.53 (15) and 84.53 (16)° with the central N—N=C—C=N—N dihydrazonoethane plane. Inter­molecular C—H⋯π inter­actions are observed

N′-[5-(4-Nitro­phen­yl)furan-2-yl­methyl­idene]-N,N-diphenyl­hydrazine

The title compound, C23H17N3O3, has an E configuration with respect to the C=N bond. The dihedral angle between the two phenyl rings bonded to the hydrazine group is 86.45 (13)°. The furan ring makes dihedral angles of 3.4 (2) and 7.06 (13)°, respectively, with the methyl­idenehydrazine C=N—N plane and the benzene ring

(E)-1-(3,4-Dimethyl­benzyl­idene)-2,2-diphenyl­hydrazine

The asymmetric unit of the title compound, C21H20N2, contain two mol­ecules, both of them showing an E configuration of the C=N bond. The dihedral angles between the phenyl rings in the phenyl­hydrazone groups are 86.84 (10) and 84.85 (8)° for the two mol­ecules. Inter­molecular C—H⋯π inter­actions are observed in the crystal structure

(E)-1-Benzyl­idene-2,2-diphenyl­hydrazine

The asymmetric unit of the title compound, C19H16N2, contains two independent mol­ecules, both of which show an E configuration with respect to the C=N bond. The dihedral angles between the phenyl rings bonded to the hydrazine group are 81.00 (10) and 88.34 (8)° in the two mol­ecules. Inter­molecular C—H⋯π inter­actions are observed in the crystal structure

Crystal structure of (E)-1-(2-nitrobenzylidene)-2,2-diphenylhydrazine

The title compound, C19H15N3O2, shows an E conformation of the imine bond. The dihedral angle between the planes of the phenyl rings in the diphenylhydrazine groups is 88.52 (4)°. The 2-nitrobenzene ring shows a torsion angle of 10.17 (8)° with the C=N—N plane. A short intramolecular C—H...O contact occurs. In the crystal, only van der Waals contacts occur between the molecules

(E)-1,1-Diphenyl-2-(thiophen-2-ylmethylidene)hydrazine

The asymmetric unit of the title compound, C17H14N2S, consists of two crystallographically independent molecules with similar conformations. The dihedral angles between the phenyl rings are 89.32 (5) and 82.80 (5)° in the two molecules. In the crystal, molecules are linked by C—H...π interactions, forming a three-dimensional network

(E)-1-(2,4-Dinitrobenzylidene)-2,2-diphenylhydrazine

In the crystal of the title compound, C19H14N4O4, the asymmetric unit consists of two discrete molecules. The C=N bonds in both molecules show an E conformation. The dihedral angles between the C atoms of the 2,4-dinitrobenzene rings and the C=N—N planes are 13.52 (9) and 13.82 (9)° for the two molecules. In the crystal, C—H...O hydrogen bonds, mainly between the phenyl ring and the nitro group along the b axis