Compound and its preparation method and application naphthyl substituted pyridazine comprising structural units

The present invention discloses a compound and its preparation method and application naphthyl-substituted pyridazin-containing structural units. The compound containing a substituted pyridazine naphthyl structural unit as shown in Formula I structural formula. The compound of formula I, NMR correctly detected, few studies on stage near infrared materials, there is a lack of high efficiency, near-infrared light emitting material having high stability, a series naphthyl-substituted pyridazin-containing structure near infrared Luminescent material. These compounds, and easily available raw materials, simple preparation, the overall yield for Progress and near infrared materials have important application value.