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RSS FeedsMolecules, Vol. 25, Pages 363: ?- and ?-Substituted Metal-Free Phthalocyanines: Synthesis, Photophysical and Electrochemical Properties (Molecules)

 
 

16 january 2020 05:03:43

 
Molecules, Vol. 25, Pages 363: ?- and ?-Substituted Metal-Free Phthalocyanines: Synthesis, Photophysical and Electrochemical Properties (Molecules)
 




Two novel phthalonitrile derivatives, bearing two hexyloxy groups and a benzodioxin (or a naphthodioxin) annulated ring, along with their corresponding metal-free phthalocyanines (H2Pc) were prepared. FT-IR, mass, electronic absorption, 1H NMR, and 13C NMR spectroscopy were employed for the characterization of all compounds. The effect of hexadeca substituents on the photophysical properties of metal-free Pcs was investigated. Photophysical properties of H2Pc were studied in tetrahydrofuran (THF). Fluorescent quantum yields of phthalocyanines (Pcs) were calculated and compared with the unsubstituted phthalocyanine. 1,4-Benzoquinone effectively quenched the fluorescence of these compounds in THF. Cyclic and square wave voltammetry methods were applied to metal-free phthalocyanines and Pc-centered oxidation and reduction processes were obtained.


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78 viewsCategory: Biochemistry, Chemistry, Molecular Biology
 
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