SEARCH Articles Figures Tables Alkene bond Alkenes bonding Bonding in metal-alkene complexes Cleavage of the Allylic Bond in Aliphatic Alkenes Double bond in alkenes Pi bonds in alkenes Rotation about Sigma (a) Bonds in Acyclic Alkanes, Alkenes, Alkynes, and Alkyl-Substituted Arenes Structure and Bonding in Alkenes Structure and Bonding in Metal Alkene Complexes