Photochemie adsorbierter Moleküle. V. ESR-Untersuchungen von Phenylkationen bei der Photolyse von Arendiazoniumsalzen im Festkörper und im adsorbierten Zustand
✍ Scribed by Dr. D. Bäzold; Prof. Dr. D. Fassler; R. Kunert
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 406 KB
- Volume
- 324
- Category
- Article
- ISSN
- 1615-4150
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✦ Synopsis
Photochemistry of Adsorbed Molecules. V. E.S.R.‐Investigations of Phenyl Cations during Photolysis of Arendiazonium Salts in the Polycrystalline and the Adsorbed State
During photolysis of 4‐NR~2~‐substituted arene diazonium salts ground state triplets occur at low temperatures in the e.s.r.‐spectra with (π)^5^(sp^2^)^1^ configuration in the polycrystalline as well as in the adsorbed state on SiO~2~. The influence of anions and the reaction order of decay processes are discussed. The decay of the aryl cations were also investigated in the presence of pyrene as π‐electron donor. Reaction takes place with coadsorbed molecules and the decay mechanism changes from ionic character to radical character.