Spin transition in a manganese (III) porphyrin cation radical, its transformation to a dichloromanganese (IV) porphyrin, and chlorination of hydrocarbons by the latter
Spectroscopic examinations of the bis (perchlorato) manganese (III) porphyrin cation radical 3 revealed an unprecedented spin transition. Complex 3 is a suitable synthetic precursor for the dichloromanganese (IV) porphyrin 4, which effects chlorination of dimedone, chlorodimedone, styrene, and norbornene by a radical pathway.