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PHOTOREDUCTION OF VIOLOGENS WITH NADPH AS REVERSIBLE ELECTRON DONOR

Shigetoshi Aono, Tatsuya Kita, Ichiro Okura, Akira Yamada

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Abstract

Abstract— The photoreduction of viologens with NADPH as an electron donor was investigated. As the photosensitizer in that reaction, ZnTPP33‐ and HmP were applied. HmP dissolved by CTAB or Triton X‐100 was a more active photosensitizer than ZnTPPS33‐. The reduction rate of viologen under steady state irradiation depends remarkably on the type of surfactant used for dissolving HmP. The effect of the surface charge of micelle was examined by laser flash photolysis.

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Abstract— The photoreduction of viologens with NADPH as an electron donor was investigated. As the photosensitizer in that reaction, ZnTPP33‐ and HmP were applied. HmP dissolved by CTAB or Triton X‐100 was a more active photosensitizer than ZnTPPS33‐. The reduction rate of viologen under steady state irradiation depends remarkably on the type of surfactant used for dissolving HmP. The effect of the surface charge of micelle was examined by laser flash photolysis.

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Available abstract

Abstract— The photoreduction of viologens with NADPH as an electron donor was investigated. As the photosensitizer in that reaction, ZnTPP33‐ and HmP were applied. HmP dissolved by CTAB or Triton X‐100 was a more active photosensitizer than ZnTPPS33‐. The reduction rate of viologen under steady state irradiation depends remarkably on the type of surfactant used for dissolving HmP. The effect of the surface charge of micelle was examined by laser flash photolysis.

Key concepts: Photosensitizer, Flash photolysis, Photochemistry, Chemistry, Viologen, Electron donor, Micelle, Pulmonary surfactant

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