An efficient catalyst of the title complex (abbreviated as FePz(dtn)(4)) is a porphyrin-like complex, which is able to activate molecular oxygen for oxidative degradation of organic compounds in an extensive pH region without light excitation. The experiments indicated that the FePz(dtn)(4)/O-2 system showed an excellent oxygenation capability, in which the Rhodamine B(RhB) was degraded nearly 52% in alkaline aqueous solution in the seven hours and the p-nitrobenzoic acid(NBA) could be also oxygenated nearly 85% detected by UV-vis, HPLC in the similar conditions. The degradation components of RhB and NBA were analyzed by GC-MS and IR. The mineralization rate of RhB and NBA were 12 and 11.1% after reaction for 24 h respectively.