Substituent effects on the electronic characteristics of pentacene derivatives for organic electronic devices: dioxolane-substituted pentacene derivatives with triisopropylsilylethynyl functional groups Griffith, O.Lobanova.; Anthony, J.E.; Jones, A.G.; Shu, Y.; Lichtenberger, D.L. Journal of the American Chemical Society 134(34): 14185-14194 2012 https://eurekamag.com/research/055/992/055992098.php