First X-ray crystal structure of a lanthanide(iii) monoporphyrinic complex using non-planar porphyrin rings

Abstract

Twenty-three years after the first synthesis of lanthanide(III) porphyrins the X-ray crystal structure of [Tb^III(β-Cl₈tpp)(O₂CMe)(Me₂ SO₂] is reported; the synthetic route to four halogenated porphyrins H₂(β-X_ntpp) (X = Cl or Br, n = 4 or 8) is described and compared with the corresponding [Tb^III(β-X_ntpp)(O₂CMe)]; the highly distorted structure of the Tb^III complex is compared with similar perhalogenated porphyrinic complexes; the X-ray structure of the brominated free base is also reported.

References

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