Synthesis, electrochemical, in-situ spectroelectrochemical and in-situ electrocolorimetric characterization of new phthalocyanines containing macrocyclic moieties
By Kiliçaslan, Meltem Betül; kantekin, Halit & Koca, Atif
Published in Dyes and Pigments
NULL
2014
Abstract
In this work, we synthesized new phthalocyanine compounds containing optically active 1,1'-binaphthyl crown ethers units. The metal-free phthalocyanine (3) was synthesized by the cyclotetramerization of dinitrile derivative (2) in dry n-pentanol by a classical method. However, metal phthalocyanines complexes (4, 5, 6), were synthesized by the reaction of dinitrile derivative (2) in DMAE. The structure of the new compounds were characterized by using spectroscopic data and elemental analysis. Electrochemical properties of Co (II) and Zn (II) phthalocyanines were investigated by using cyclic voltammetry and differential pulse voltammetry techniques. They exhibited two reversible Pc ring-based one-electron reduction couples. The Co (II) and Zn (II) phthalocyanines gave very similar voltammetric responses with slight potential shift due to different metal center.
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