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Porphyrins are stable molecules with a macrocyclic conjugated system and often peripheral substituents. Herein we reported the synthesis and characterization of a new type of metalloporphyrin. SnTCPP was synthesized and dissolved in THF, and then thionylchloride was slowly added into solution to start reaction under stirring at 70 ⁰C for 2 h. The excess thionylcholoride must be removed. Then phenol or 1, 1ʹ-biphenyl – 4– ol was added to the solution and the mixture was stirred and refluxed for 8 h. The corresponding products (5,10,15,20-tetrakis(4-phenylbenzoate)porphyrin and 5,10,15,20-tetrakis(4-[1,1ʹ-biphenyl]-4yl benzoate)porphyrin) were obtained. We identified the products by FT-IR and UV-Vis techniques. We investigated the effect of functional groups (phenol and 1, 1ʹ-biphenyl – 4– ol) in photocatalytic degradation of methylene blue under visible light irradiation in the same conditions.

Synthesis and Characterization of Tin(II) 5,10,15,20-Tetrakis(4-Phenylbenzoate)Porphyrin and Tin(II) 5,10,15,20-Tetrakis(4-[1,1ʹ-Biphenyl]-4ylbenzoate)Porphyrin