Electrochemical and Spectroelectrochemical Analysis of 4‐(4‐(5‐Phenyl‐1,3,4‐oxadiazole‐2‐yl)phenoxy)‐Substituted Cobalt(II), Lead(II) and Metal‐Free Phthalocyanines |
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| Authors: | Asiye Nas Halit Kantekin Atıf Koca |
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| Institution: | 1. Macka Vocational School, Karadeniz Technical University, 61750, Trabzon, Turkey tel: +90?462?512?3535;2. fax: +90?462?512?3552;3. Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey;4. Department of Chemical Engineering, Engineering Faculty, Marmara University, 34722 G?ztepe, ?stanbul, Turkey |
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| Abstract: | Electrochemical and spectroelectrochemical analyses of 4‐(4‐(5‐phenyl‐1,3,4‐oxadiazole‐2‐yl)phenoxy)‐substituted metal‐free phthalocyanine ( H2Pc ( 1 )) and metallated phthalocyanines ( PbPc ( 2 ) and CoPc ( 3 )) were performed in solution. Voltammetric characterizations of the phthalocyanine complexes were investigated by using cyclic voltammetry and square wave voltammetry techniques. CoPc ( 3 ) gave common metal and ring based electron transfer reactions; however they split due to the aggregation. Although PbPc ( 2 ) illustrated reversible reduction processes during the voltammetric measurements, it was de‐metallized and thus turned to the metal free phthalocyanine during repetitive voltammetric cycles and in situ spectroelectrochemical measurements. |
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| Keywords: | Electrochemistry Demetallation Spectroelectrochemistry Cyclic voltammetry Square wave voltammetry |
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