Hexakis(trimethylsilylethynyl)[3]radialene: A Carbon-Rich Chromophore with Unusual Electronic Properties

摘要

In our program targeting the construction of novel all-carbon molecules and polymeric networks, we became interested in the synthesis of hexaethynyl[3]radialene (1 a, C_(18)H_6), which had been independently identified both by Hopf and Maas and by oneof us as a suitable molecular precursor for a regular two-dimensional all-carbon network. A variety of [3]radialenes have been prepared, and their electronic and redox properties are strongly dependent on the nature of the substituents at the double bonds.