A voltammetric study of several oxygen, sulfur and selenium heterocyclic carbonium ions in acetonitrile

Cyclic voltammetric data are reported on seven new oxygen, sulfur and selenium heterocyclic carbonium ions. Each compound undergoes electrochemical reduction to form a dimer. The reaction mechanisms are discussed. The compounds with selenoethoxy substituents formed heterofulvalenes at room temperature. © 1977 Elsevier Sequoia S.A.