MnIII(Porphyrin)-Based Porous Coordination Polymers: Synthesis, Catalytic Activities for the Oxidation of Ethylbenzene

Six Mn III (porphyrin)-based porous coordination polymers, Mn III (F 5 CPp)–Mn II ( CP1 , F 5 CPp=5-(pentafluorophenyl)-10,15,20-tri(4-carboxyphenyl)porphyrin dianion), Mn III (F 5 CPp)–Co II ( CP2 ), Mn III (F 5 CPp)–Ni II ( CP3 ), Mn III (F 10 CPp)–Mn II ( CP4 , F 10 CPp=5,15-bis(pentafluorophenyl)-10,20-bis(4-carboxyphenyl)porphyrin dianion), Mn III (F 10 CPp)–Co II ( CP5 ), and Mn III (F 10 CPp)–Ni II ( CP6 ), were prepared and characterized. The precursors were identified by UV–Vis, GC–MS, infrared spectra and elemental analysis in the procedures of Mn III (porphyrin)-based polymers synthesis. CP1 , CP4 , CP3 and CP6 are amorphous aggregation supported by SEM, TEM and powder XRD. CP2 and CP5 are rod-like microcrystalline particles supported by powder XRD and SAED. These polymers exhibit high catalytic activities and selectivities toward the oxidation of ethylbenzene to acetophenone in quantitative over 70 % yields, and can be reused by filtration with only slight decreasing of catalytic activities. Graphical Abstract