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Purification of Laboratory Chemicals, 8th Edition by W.L.F. Armarego

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Iron(III) meso-5,10,15,20-tetraphenylporphine chloride complex [5,10,15,20-tetraphenyl-21H, 23H-porphine iron(III) chloride] [16456-81-8] C44H28ClN4Fe, M 704.0, λmax 418nm. Purify the complex by extraction from a thimble (Soxhlet) with CHCl3. Concentrate the extract to ca 10ml and add ca 80ml of hot MeOH. Dark blue crystals separate on cooling. It can be recrystallised several times from CHCl3/MeOH. Avoid prolonged heating. It is quite soluble in organic solvents but insoluble in petroleum ether. [Rothemund & Menotti J Am Chem Soc 70 1808 1948, DOI: 10.1021/ja01185a047; UV: Dorough et al. J Am Chem Soc 73 4315 1951, DOI: 10.1021/ja01153a085; Beilstein 26 III 1960.] [As catalyst for silylation of OH groups see Firouzabadi et al. Synth Commun ...

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