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Synthesis, Characterization and Electrochemistry of New Soluble Porphyrazine Complexes Bearing Octakis 3‐Methylbutylthio Substituents
Author(s) -
Erdoğmuş Ali,
Koca Atıf,
Avcıata Ulvi,
Gül Ahmet
Publication year - 2008
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200800279
Subject(s) - porphyrazine , chemistry , electrochemistry , homo/lumo , metal , carbon 13 nmr , medicinal chemistry , photochemistry , nuclear chemistry , stereochemistry , molecule , electrode , organic chemistry
Abstract Porphyrazines, MPz (M = Mg, H, Ni, Zn and Co) with octakis 3‐methylbutylthio substituents have been synthesized starting with the corresponding unsaturated dicarbonitrile derivative. These new compounds have been characterized by UV‐Vis, FT‐IR, 1 H NMR, MS and elemental analysis methods. Voltammetric properties of the complexes were also investigated by CV, DPV and CPC techniques. Electrochemical studies show that three reversible one electron reductions and one reversible one electron oxidation processes (two for Co II Pz) are observed for all of the complexes. The E 1/2 values are similar for the H 2 Pz, Ni II Pz and Zn II Pz derivatives with negative shift due to the different effective nuclear charges of the central metal ion. Peak to peak separations and separation between the first reduction and first oxidation couples related with the HOMO‐LUMO gap of the complexes are in harmony with the common porphyrazine complexes.