Identification of Porphyrins by the X-Ray Powder Method

Klesper, Ernest.; Corwin, Alsoph H.; Iber, Peter K.

doi:10.1021/ac60176a011

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1962

1966

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“…Each porphyrin isomer has been found to give its own distinctly characteristic X-ray powder pattern, thus permitting easy differentiation.10 Porphyrin II exhibits polymorphism. 10 In comparative solubility experiments in three different organic solvents both at the boiling point and at room temperature, the four porphyrin isomers showed the same order of decreasing solubility in each solvent: III > IV >> I > II. The three solvents listed in order of decreasing effectiveness were chloroform, " Formula CgeHseNA.…”

Section: Chart IVmentioning

confidence: 95%