Lanthanide(II) and -(III) porphyrinogens -: Rational synthesis and derivatisation of mononuclear, alkali-metal-free lanthanide(II) and -(III) meso-octaalkylporphyrinogen complexes

Modifying the porphyrinogen framework in lanthanide porphyrinogen complexes by trans-N,N'-dimethylation results in Sm-II and Sm-III derivatives that are remarkably simple in structure and formulation, and are amenable to highly controllable further reaction chemistry. The Sm-II bis(tetrahydrofuran) adduct, Sm-III chloride and bis(trimethylsilyl)amide complexes have been synthesised and characterised by elemental analysis, H-1 and C-13 NMR spectroscopy and X-ray crystal structure determinations. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).