Dithienopyridine zinc coordination compound luminescence material and preparation method thereof

The present invention discloses a dithienopyridine zinc coordination compound and a preparation method thereof. The dithienopyridine zinc coordination compound is formed by complexing a ligand dithienopyridine and zinc chloride, wherein the molecular structure general formula is defined in the specification, the skeletal structure of ligand is a binding body of thiophthene and pyridine, contains two nitrogen atoms capable of simultaneously performing chelating coordination, and provides good coordination ability on transition metals, and the ligand has a rigid plane-like structure and the conjugating system is large so as to achieve the good fluorescence property. According to the present invention, 3,4-diaminothieno[2,3-b]thiophene-2,5-dinitrile is adopted as the raw material, the 3,4-diaminothieno[2,3-b]thiophene-2,5-dinitrile and ketone are subjected to a Friedlander reaction under the induction of zinc chloride, a series of the dithienopyridine zinc coordination compounds are synthesized through the one-pot method, and the ligand and the ZnCl2 can be subjected to in situ coordination to form the stable coordination compound without separation, such that the operation process is simple, the atom economy is high, the reaction conditions are mild, and the yield is high; and the coordination compound material can be used as the luminescence material, and can be used as the luminescence layer material in the luminescence device.