Abstract

The preparation and properties of a manganese tetraphenylporphyrin compound, MnTTP(CF/sub 3/SO/sub 3/)/sub 2/, are described. This compound is believed to undergo temperature-dependent valence isomerization from a manganese(III) pi cation radical at higher temperature to a manganese (IV) porphyrin at reduced temperatures. The compound is produced by a one-electron oxidation from the starting material MnTPP(Cl) containing a trivalent Mn. The data reported support the hypothesized temperature-dependent oxidation-state change. 12 references, 3 figures, 1 table.

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