Synthesis by Stille cross-coupling procedure and electrochemical properties of C3-symmetric oligoarylobenzenes

A series of various C3-symmetric molecules were synthesized by Stille cross-coupling procedure. Monomers have been characterized by 1H NMR, 13C NMR. Received oligomers in the process of electropolymerization, containing thienyl, furyl, and EDOT groups provide good conductivity and show stability in common organic solvents such as CHCl3, toluene, and CH2Cl2 and exhibit thermal stability. Electrochemical results suggest that obtained materials can be successfully used in wide scale of organic-electronic devices such as organic light-emitting diodes (OLEDs), organic field-effect transitors (OFETs), and organic solar cells.

Graphical abstractA series of various C3-symmetric compounds based on a triarylbenzene core substituted with thienyl, furyl, and ethylenedioxythienyl groups have been synthesized by Stille coupling procedure, their spectroscopic and electrochemical properties are presented and discussed.Download full-size image