1,3-Dibenzyl-2-(2-chloro­phen­yl)-4-methyl­imidazolidine

In the title compound, C₂₄H₂₅ClN₂, the methine, methyl­ene and methyl C atoms of the methyl-substituted imidazolidine ring are disordered over two sets of sites with a refined occupancy ratio of 0.834 (4):0.166 (4). Each disordered ring assumes an envelope conformation with an N atom as the flap. The pendant benzyl rings are oriented equatorially with respect to the imidazolidine ring. The chloro­phenyl ring is inclined to the mean plane of the four planar atoms of the major component of the imidazolidine ring by 76.27 (12)°. The dihedral angles between the chloro­phenyl ring and the two benzyl rings are 55.31 (9) and 57.50 (8)°; the dihedral angle between these latter rings is 71.59 (9)°. In the crystal, mol­ecules are linked by C—H...Cl inter­actions and a number of weak C—H...π inter­actions, involving all three aromatic rings, forming a three-dimensional structure.

2,2′-[1,2-Phenyl­enebis(aza­nedi­yl)]di­aceto­nitrile

The title compound, C₁₀H₁₀N₄, shows chemical but not crystallographic C₂ symmetry. The two cyano­methyl groups are located in an anti position with respect to the aromatic ring. In the crystal, mol­ecules form parallel ladder-like tapes linked through two N—H...N hydrogen bonds. Further weak intra­molecular N—H...N hydrogen bonding is responsible for the elongation of one of the C_aromatic—N bonds.