• Citer

Influence De La Concentration Sur Le Déclin Des Penta‐1, 3‐Dienes Photoexcités à 228.8 nm: Mise En Évidence D'Un Excimère

par Vanderlinden, Paul;Boué, Stéphane
Référence Bulletin des Sociétés chimiques belges, 86, 10, page (785-791)
Publication Publié, 1977

Article révisé par les pairs

• Détails
• Contenu

Résumé :

In contrast to the results obtained at 253.7 nm, the photolysis of penta‐1,3‐dienes at 228.8 nm in solution displays a strong remarkable concentration dependence. Hence ϕcis → trans increases and ϕtrans → cis decreases with an increasing diene concentration and both figures reach a plateau at ∼1M. A kinetic treatment is presented, which involves dynamic and static quenching (according to Perrin's law) and accounts for experimental data; the scheme consistently suggests that an excimer comes into play in this system. Copyright © 1977 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim