431892-19-2

Upstream product

• 7647-01-0 hydrogenchloride 
• 403519-74-4 Fe(5,10,15-tris(2,6-dichlorophenyl)corrole^(3-))(OEt₂)2 

Downstream Products

• 475278-12-7 Fe(III)(NO)(TCl₂PC) 
• 431892-33-0 Fe(5,10,15-tris(2,6-dichlorophenyl)corrole) 
• 431892-39-6 Fe(5,10,15-tris(2,6-dichlorophenyl)corrole)^(2-) 
• 431892-35-2 Fe(5,10,15-tris(2,6-dichlorophenyl)corrole)^(1-) 

Relevant academic research and scientific papers

β-Nitro derivatives of iron corrolates

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.

Halogeno-coordinated iron corroles

The first full assignment of 1H NMR chemical shifts for iron corroles and the first synthesis of a series of (halogeno)iron corroies reveal very large effects of the axial ligands on the corresponding spectra, which apparently reflect differences in the relative importance of metal-to-corrole and corrole-to-metal π-donation. These findings pave the way for a thorough analysis of the electronic structures of such complexes.

Iron(III) and iron(IV) corroles: Synthesis, spectroscopy, structures, and no indications for corrole radicals

A delicate control of reaction conditions allows the isolation of several distinctively different iron complexes of tris(pentafluorophenyl)- and tris(2,6-dichlorophenyl)corrole. As long as coordinating ligands are present, the iron(III) complexes are stable in solution. Otherwise they are aerobically oxidized to either mononuclear chloroiron(IV) or dinuclear (μ-oxo)iron(IV) complexes, in acidic and basic solutions, respectively (the latter holds only for tris(pentafluorophenyl)corrole). When treated with NaNO2, the mononuclear chloroiron(IV) corroles are efficiently converted into diamagnetic iron nitrosyl complexes. The low- and intermediate-spin iron(III), iron nitrosyl, and chloroiron-(IV) corroles were fully characterized by a combination of spectroscopic methods and X-ray crystallography. There was no indication for an open-shell corrole in any of the complexes.