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(C<sub>4</sub>H<sub>9</sub>)<sub>2</sub>]<sub>8</sub>} (M = 2H, Mg, Cu, Zn) (<b>1</b>–<b>4</b>) 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.