Mn.sup.III

Six Mn.sup.III(porphyrin)-based porous coordination polymers, Mn.sup.III(F.sub.5CPp)-Mn.sup.II (CP1, F.sub.5CPp=5-(pentafluorophenyl)-10,15,20-tri(4-carboxyphenyl)porphyrin dianion), Mn.sup.III(F.sub.5CPp)-Co.sup.II (CP2), Mn.sup.III(F.sub.5CPp)-Ni.sup.II (CP3), Mn.sup.III(F.sub.10CPp)-Mn.sup.II (CP4, F.sub.10CPp=5,15-bis(pentafluorophenyl)-10,20-bis(4-carboxyphenyl)porphyrin dianion), Mn.sup.III(F.sub.10CPp)-Co.sup.II (CP5), and Mn.sup.III(F.sub.10CPp)-Ni.sup.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.sup.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.