Substituent and counterion effects on the formation of p-dimer dications of end-capped heptathienoacenes

Ferron, C.C., Delgado, M.C.R., Hernandez, V., Navarette, J.T.L., Vercelli, B., Zotti, G., Cortada, M.C., Novoa, J.J., Niu, W., He, M. and Hartl, F. ORCID: https://orcid.org/0000-0002-7013-5360 (2011) Substituent and counterion effects on the formation of p-dimer dications of end-capped heptathienoacenes. Chemical Communications (47). pp. 12622-12624. ISSN 1359-7345 doi: 10.1039/c1cc14566e

Abstract/Summary

We have investigated the impact of the functionalization and the chemical nature of counterions on the p-dimer dications formation in two end-capped heptathienoacenes. Radical cations of an a-substituted heptathienoacene with triisopropylsilyl groups do not p-dimerize, while those of an a,b-substituted heptathienoacene with four n-decyl side chains show a high propensity toward p-dimerization, increased by PF6 ÿ counterions.