93842-72-9

Upstream product

• 67-56-1 methanol 
• 111435-61-1 iron(III) 5,10,15,20-tetramesitylporphyrin phenolate 
• 136096-56-5 5,10,15,20-tetra(2',4',6'-trimethylphenyl)porphyrinatoiron(III) chloride 
• 3315-60-4 methanolate 
• 254104-65-9 iron(III) 5,10,15,20-tetramesitylporphyrin 4-methoxyphenolate 
• 254104-64-8 iron(III) 5,10,15,20-tetramesitylporphyrin 2,4,6-trimethylphenolate 
• 93842-71-8 bis(perchlorato)(5,10,15,20-tetramesitylporphyrinato)iron(IV) 
• 124-41-4 sodium methylate 
• 93862-22-7 (perchlorato)(tetramesitylporphyrinato)iron(III) 
• 93862-19-2 ((CH₃)3C₆H₂)4C₂₀H₈N₄Fe(OCH₃)2 

Relevant academic research and scientific papers

Axial ligand exchange of iron(III) tetramesitylporphyrin phenolate complexes

The axial ligand of a series of iron(III) 5,10,15,20-tetramesitylporphyrin phenolate complexes was found to exchange with added carboxylic acids and alcohols. The rates of axial ligand exchange with carboxylic acids were found to be dependent on acidity of the carboxylic acid, basicity of the phenolate, and the steric bulk of both the carboxylic acid and the phenolate axial ligand. The rates of axial ligand exchange with alcohols were found to be dependent on the nucleophilicity of the alcohol, leaving group ability of the phenolate, and the steric bulk of both the alcohol and the phenolate axial ligand. Different mechanisms for ligand exchange are proposed for carboxylic acids and alcohols. The Royal Society of Chemistry 1999.

meso-Substituted Porphyrins, 4

2-Pyrryl-(3,5-dimethylphenyl)-carbinol, 2-pyrryl-(3,5-di-t-butyl-phenyl)-carbinol and 2-pyrryl-mesityl-carbinol are cyclised in acidic medium to the corresponding meso-tetraarylporphyrins.The meso-tetraarylporphyrins are transfered to the iron complexes.The reactions of the iron-porphyrins with OH(-) and H3CO(-) are studied and the products of these reactions are characterised. - Keywords: meso-Tetraarylporphyrins, meso-Tetraarylporphinatoiron(III) Complexes, meso-Tetramesitylporphinatoiron(III)methoxide, meso-Tetraarylporphinatoiron(III)hydroxides, μ-Oxo-bis(meso-tetraarylporphinatoiron(III))

Preparation and Characterization of a Dialkoxyiron(IV) Porphyrin

(Perchlorato)(tetramesitylporphyrinato)iron(III) was oxidized with ferric perchlorate to generate the corresponding iron(III) porphyrin cation radical, Fe(TMP)(ClO4)2 (1).The 1H NMR and visible spectra of 1 were similar to those of other bis(perchlorato)iron(III) porphyrin cation radicals.The reaction of 1 with 1 equiv of potassium iodide regenerated Fe(TMP)(ClO4).The treatment of 1 with 2 equiv of sodium methoxide in methanol produced a new species, 2, which was shown to be an iron(IV) complex.The β-pyrrole protons of 2 were found at very high field, -37.5 ppm relative to TMS at -78 deg C in CD2Cl2.All other resonances were observed near the expected diamagnetic positions.The temperature dependence of the β-pyrrole resonance displayed the characteristic Curie behaviour of an isolated paramagnet.The sharp singlet observed for the meta hydrogens of 2 suggested a structure with D4h symmetry.The coordination of methoxide in 2 was inferred from the requirement of 2 equiv of alkoxide to form them and the broadened 1H-methyl resonances, respectively.The oxidation of (TMP)FeIII(OCH3) with 1.2 equiv of iodosylmesitylene in methanol produced 2 and 0.7 equiv of free iodomesitylene.The Moessbauer spectra of 2 under conditions of variable temperature and variable magnetic field indicated a non-Kramers system with an isomer shift (δ) of -0.025 and a quadrupole splitting (ΔEQ) of 2.10.Magnetic susceptibility measurements on 2 gave a value of μβ=2.9, close to the spin-only value for two unpaired electrons.No EPR signals were detected for 2.Taken together the data support an S=1 iron(IV) porphyrin dimethoxide structure IV(TMP)(OCH3)2> for 2.