Preferred Label : alkene photodimerization; 
IUPAC definition :  i Photochemical process /i  leading to the formation of a cyclobutane from two identical
               alkenes, i.e., from the photocycloaddition of an electronically excited alkene to
               a ground-state alkene.; 
         
         
            Origin ID : AT07319; 
 See also See also
 
         
         
          i Photochemical process /i  leading to the formation of a cyclobutane from two identical
            alkenes, i.e., from the photocycloaddition of an electronically excited alkene to
            a ground-state alkene.