105762-41-2Relevant articles and documents
Steric Effects on Atropisomerism in Tetraarylporphyrins
Crossley, Maxwell J.,Field, Leslie D.,Forster, Adrienne J.,Harding, Margaret M.,Sternhell, Sever
, p. 341 - 348 (2007/10/02)
The rate of aryl ring rotation in a series of 5,10,15,20-tetrakis(2-X-5-methoxyphenyl)porphyrins, where X = H, F, Cl, Br, and I, was studied by NMR spectroscopy and chromatography.Where X = Cl, Br, and I, the four atropisomers αβαβ, ααββ, αααβ, and αααα w