Synthesis and characterization of 1,3,5-triphenylamine derivatives with star-shaped architecture

• A synthesis route for a group of new compounds is described.
• An optical and electrochemical properties of investigated compounds are described.
• The correlation between structure and properties is described.

In this work we report the synthesis, electrochemical and optical properties of five new, star shaped compounds containing both carbazole and triphenylamine moieties, further endcapped with thiophene or 3,4-ethylenedioxythiophene units. Electrochemical, UV–visible spectroscopy and fluorescence methods were employed to study the properties of these compounds as well as their electropolymers. The basic characteristics such as the band gaps, HOMO and LUMO values, absorption and emission maximum wavelengths of the monomers and the polymers are reported and discussed.