Filtern
Volltext vorhanden
- ja (1)
Gehört zur Bibliographie
- ja (1)
Erscheinungsjahr
- 1990 (1)
Dokumenttyp
Sprache
- Englisch (1)
Schlagworte
- Photochemistry (1) (entfernen)
Institut
The transient yellow color observed in the cycloaddition of homobenzvalene (HB) with tetracyanoethylene (TCNE) is associated with the charge-transfer complex [HB, TCNE). The deliberate photoexcitation of [HB,TCNE) affords a mixture of charge-transfer cycloadducts (1, 2, and 3) that differs from that obtained in thermal cycloaddition. The relationship of {HB t TCNE•) radical-ion pair (as the critical reactive intermediate in charge-transfer cycloaddition) to the activation process for thermal cycloaddition is discussed.