Synthesis of hydrogen-substituted graphdiynes dehalogenative homocoupling reactions

A new method is introduced to prepare hydrogen-substituted graphdiynes (HsGDYs) via the dehalogenative homocoupling of terminal alkynyl bromides. Compared with previous synthetic strategies, the reaction conditions are moderate and the time is shortened. HsGDYs exhibit porous structures and hydrogen/oxygen evolution reaction (HER/OER) catalytic activity, endowing applications in electrochemical catalysis. A porous hydrogen-substituted graphdiyne is synthesized via the dehalogenative homocoupling reaction of terminal alkynyl bromides under mild conditions.