Synthesis,Structure and Properties of [(ZnTPP) 2 (μ 2 -4,4'-Bipyridine)] (H 2 TPP = 5,10,15,20-Tetraphenyl-21H,23H-Porphyrin;4,4'-Bipy = 4,4'-Bipyridine)

Abstract

The metalloporphyrin [(ZnTPP)₂(μ₂-4,4'-bipy)], (H₂TPP = 5,10,15,20-tetraphenyl-21H,23H-porphyrin; 4,4'-bipy = 4,4'-bipyridine), has been synthesised via a solvothermal reaction and structurally characterised by single-crystal X-ray diffraction. It features a planar porphyrin macrocycle and an embedded Zn^II ion coordinating to four pyrrole nitrogen atoms and one 4,4'-bipy nitrogen atom. A photoluminescent and theoretical study shows that the complex exhibits an emission in the red region, attributed to ligand to ligand charge-transfer.