340165-40-4Relevant academic research and scientific papers
Iron complexes of tris(4-nitrophenyl)corrole, with emphasis on the (nitrosyl)iron complex
Singh, Pinky,Saltsman, Irena,Mahammed, Atif,Goldberg, Israel,Tumanskii, Boris,Gross, Zeev
experimental part, p. 663 - 673 (2012/08/28)
The iron complexes of 5,10,15-tris(4-nitrophenyl)corrole have been prepared and characterized by various spectroscopic techniques. The (nitrosyl)iron complex is diamagnetic and its X-ray structure reveals an almost perfectly linear FeNO bond. EPR spectros
β-Nitro derivatives of iron corrolates
Nardis, Sara,Stefanelli, Manuela,Mohite, Pruthviraj,Pomarico, Giuseppe,Tortora, Luca,Manowong, MacHima,Chen, Ping,Kadish, Karl M.,Fronczek, Frank R.,McCandless, Gregory T.,Smith, Kevin M.,Paolesse, Roberto
, p. 3910 - 3920 (2012/04/23)
Two different methods for the regioselective nitration of different meso-triarylcorroles leading to the corresponding β-substituted nitrocorrole iron complexes have been developed. A two-step procedure affords three Fe(III) nitrosyl products-the unsubstituted corrole, the 3-nitrocorrole, and the 3,17-dinitrocorrole. In contrast, a one-pot synthetic approach drives the reaction almost exclusively to formation of the iron nitrosyl 3,17-dinitrocorrole. Electron-releasing substituents on the meso-aryl groups of the triarylcorroles induce higher yields and longer reaction times than what is observed for the synthesis of similar triarylcorroles with electron-withdrawing functionalities, and these results can be confidently attributed to the facile formation and stabilization of an intermediate iron corrole π-cation radical. Electron-withdrawing substituents on the meso-aryl groups of triarylcorrole also seem to labilize the axial nitrosyl group which, in the case of the pentafluorophenylcorrole derivative, results in the direct formation of a disubstituted iron μ-oxo dimer complex. The influence of meso-aryl substituents on the progress and products of the nitration reaction was investigated. In addition, to elucidate the most important factors which influence the redox reactivity of these different iron nitrosyl complexes, selected compounds were examined by cyclic voltammetry and thin-layer UV-visible or FTIR spectroelectrochemistry in CH2Cl2.
