Studies on Phthalocyanine Type Compounds (Part IX):Hydrogen Treatment of Metal-free Phthalocyanine and Its Stability
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概要
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Metal-free phthalocyanines (H<SUB>2</SUB>-PCs) were subjected to a hydrogen treatment in the same manner as hydrogenation or hydrocracking. A mechanism of hydrogen holding on phthalocyanine type compounds was examined by X-ray photoelectron spectroscopy (XPS) and proton magnetic resonance (NMR) spectroscopy. From C 1 s and N1 s XPS spectra of H<SUB>2</SUB>-PCs, the tetrabenzoporphyrazine underwent a chemical change during the hydrogen treatment. Hydrogens were held at the β sites of phenylene rings in H<SUB>2</SUB>-PC, which was confirmed by NMR spectra. By the hydrogen treatment, H<SUB>2</SUB>-PC was transformed into a or α-like crystal form and then fused through an amorphous state.
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