Two novel D–A (donor–acceptor) and one D–A–D small molecules containing mesitylborane as an acceptor and triphenylamine as a donor, linked through a thieno[3,2-b]thiophene π-conjugated spacer, are synthesized and characterized.

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TPE units at the periphery of two TTs and a DTT affect the structures, properties and OLED characteristics of these three synthetically easily accessible novel conjugated compounds for materials chemistry.

We report a new method for the photoinduced synthesis of poly(N-ethylcarbazole) (PEC).

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