## Abstract The stoichiometry of the platinum‐catalyzed reaction of two methylviologen radical cations and two protons yielding two methylviologen dications and one molecule of hydrogen is demonstrated. ‐Watersoluble tin(IV) porphyrins are reduced by EDTA and visible light, first to give chlorins,
✦ LIBER ✦
Evolution of Hydrogen from Photochemically Reduced Water-Soluble Tin(IV)-Porphyrins
✍ Scribed by Wolfgang Krüger; Prof. Dr. Jürgen-Hinrich Fuhrhop
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 114 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
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## Abstract The photoredox behaviour of two water soluble derivatives of zincporphyrin, 5,10,15,20‐tetra‐__p__‐sulfonatophenyl (**1**) and 5,10,15,20‐tetra‐p‐__N__‐methylpyridiniochloride (**2**), was investigated using laser and continuous photolysis techniques. Photoexcitation produces triplet st