Unprecedented Phthalocyanines Bearing Eight Di-butylamino Peripheral Substituents: Synthesis, Spectroscopy, and Structure

Unprecedented 2,3,9,10,16,17,23,24-octakis­(di-butylamino)­phthalocyanine compounds M­{Pc­[N­(C₄H₉)₂]₈} (M = 2H, Mg, Cu, Zn) (1–4) were prepared and structurally characterized on the basis of single-crystal X-ray diffraction analysis, representing the first structurally characterized alkylamino-substituted phthalocyanine examples. These novel phthalocyanine derivatives have also been characterized by a wide range of spectroscopic methods including MALDI-TOF mass spectra, NMR, electronic absorption, and IR spectroscopy in addition to elemental analysis. Their electrochemistry was also studied by cyclic voltammetry.