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Issue 7, 1996

Intermediate-spin iron(III) octaethyltetraazaporphyrinates with weakly co-ordinating anions: synthesis, characterization and crystal structure

Abstract

The metathesis reaction of AgZ(Z = ClO4, PF6, SbF6 or CF3CO2) with chloroiron(III) 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetraazaporphyrinate chloride, Fe(oetap)Cl, in tetrahydrofuran or toluene gave the Fe(oetap)Z derivatives in approximately 70% yield. The complexes are air-stable solids but decompose in solution to [Fe(oetap)]2 O (Z = ClO4 or CF3CO2) or Fe(oetap)F (Z = PF6 or SbF6). They have been characterized by variable-temperature magnetic susceptibility measurements and Mössbauer, UV/VIS, IR and ESR spectroscopies. In addition, Fe(oetap)ClO4 has been structurally characterized by single-crystal X-ray diffraction. All of the complexes are intermediate-spin (S=[fraction three-over-two]) based on their magnetic properties and Mössbauer and ESR spectra.

Article information


J. Chem. Soc., Dalton Trans., 1996, 1249-1253
Article type
Paper

Intermediate-spin iron(III) octaethyltetraazaporphyrinates with weakly co-ordinating anions: synthesis, characterization and crystal structure

J. P. Fitzgerald, G. P. A. Yap, A. L. Rheingold, C. T. Brewer, L. May and G. A. Brewer, J. Chem. Soc., Dalton Trans., 1996, 1249 DOI: 10.1039/DT9960001249

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