SEARCH Articles Figures Tables Diatomic Wiberg Local Wiberg index NILS WIBERG ntroduction Wiberg bond index Wiberg index Wiberg index values Wiberg mechanism Wiberg silenes, reactions Wiberg silenes, reactions with dienes Wiberg, Egon Wiberg, Kenneth Wiberg, Nils Wiberg-type silenes Wiberg-type silenes adducts Wiberg-type silenes cycloadditions