[K602-1pm] 13. Organic Chemistry -Reaction Mechanism, Photochemistry, Electrochemistry-

[K602-1pm-04] What is the reason why the ring-opening quantum yield is smaller than the ring-closure one and their sum is smaller than unity in many 6π-electron photochemical electrocyclic reactions?

^○Takao Kobayashi¹, Shinichiro Nakamura², Motoyuki Shiga³ (1. Mitsubishi Chemical Corporation, 2. Kumamoto University, 3. Japan Atomic Energy Agency)

[Lang.] Japanese

Keywords:photochemical electrocyclic reaction, quantum yield, conical intersection, cyclohexadiene / hexatriene, branching ratio