Synthesis and properties of a meso-tetraphenylporphyrin and its Zn (II) complex with a dicyanoisophorone borne by double bond in the β pyrrolic position

A novel porphyrin compound (W1) with D-π-A structure and its Zn (II) complex (Zn-W1) have been synthesized. W1 and Zn-W1 show a similar absorption and emission spectra of porphyrins. Their optical properties can be modulated by the substituent in the β pyrrolic position. W1 and Zn-W1 have preferable thermal stability, as indicated from TGA data. And Zn-W1 shows reversible redox wave in its dichloromethane solution. Also, DFT calculations were used to study these two compounds.