Novel pyrazole functionalized phthalocyanines and their first row transition metal complexes

Abstract

Pyrazole functionalized phthalodinitriles derived from 4,5-dichlorophthalonitrile by SⁿAr reactions were used as precursors for the synthesis of phthalocyanines substituted with pyrazolyl groups in the 2,3,9,10,16,17,23,24-positions. The phthalocyanines were characterized by means of MALDI-TOF MS, IR, NMR and UV-Vis spectroscopy. The corresponding first row transition metal complexes with Mn(III), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) could be obtained by metal insertion and/or template synthesis.