Sterically congested pyrrole-fused tetrathiafulvalene decamers as highly conductive amorphous molecular materials

Sterically congested pyrrole-fused tetrathiafulvalene (TTF) decamer 4 was designed and synthesized via the SNAr reaction of decafluorobiphenyl with the corresponding pyrrolyl sodium salt, which formed amorphous spin-coated films showing good conductivity of up to 4.4 S cm(-1) after iodine doping as the result of multi-dimensional pi-pi stacking between the TTF units.