The conformation of the side chain is described by the torsion angles ZC8-01-C1-C7 = 82.8(3)° and Z03-C12-C13-C14 = -18.0(4)°. The aromatic rings (C1/C2/C3/C4/C6/C7) and (C13/C14/C15/C16/C17/C18) are not co-planar with a dihedral angle of 20°. There are two types of intra-molecular hydrogen bonds: C12-H12B -04 (2.672(4) Â) and C14-H14-03 (2.824(3) Â). The molecules are linked by intermolecular hydrogen bonds N1-H1-04 1 (symmetry code i: l+x,y,z). The bond distance and angle between donor and

more »

... eptor are 3.267(4) Â and 175(3)°. There are also weak π-π stacking interactions between the aromatic rings with a centroid-tocentroid distance of 3.576 Â.