The Crystal Structure of the 2 : 3 Complex of Zinc Phthalocyanine and n-Hexylamine

Abstract
Crystals of the 2 : 3 complex of zinc-phthalocyanine and normal hexylamine were studied. They are monoclinic, space group P21⁄c, with cell dimensions a=12.40, b=15.76, c=20.05, β=93.2° and there are four phthalocyanine and six hexylamine molecules per cell. The phthalocyanine molecule is not planar and the central zinc ion is displaced from the plane by 0.48 Å toward the nitrogen atom of the amine. Zinc ion is of a square pyramidal five coordination. There are two bonding states for the amine in the complex crystal. One is weakly bonded and can be easily released from the lattice and the other is strongly bonded and coordinated directly to the zinc ion. None of the atomic parameters of these amines except those of the coordinating nitrogen were exactly determined.