The dihedral angles between the mean-plane of the DiKTa core and the phenyl rings of diphenyl amine in 3DPA-DiKTa range between 10.66° and 42.24°. In 3TPA-DiKTa the bridging phenylene rings are close to co-planar with the DiKTa core, the torsion angles between the three bridging phenylene rings and the mean-plane of the DiKTa core being 7.86, 14.20 and 16.47°.