Iron complexes of derivatised pentadentate macrocyclic ligands; the crystal and molecular structure of dichloro(6,13-(bis-2-hydroxyethyl)-6H, 13H-tripyrido[cd,fg,lm] [1,2,4,7,9,10,13] heptaaza-pent adecine)iron (III) chloride

Edwin C. Constable, Muhammad S. Khan, Jack Lewis, Michael C. Liptrot, Paul R. Raithby

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Iron(II) complexes of planar pentadentate macrocyclic ligands containing 2,2'-bipyridine or 1,10- phenanthroline subunits have been prepared by template condensation of open-chain bis(hydrazines) with 2,6-diacetylpyridine or 2,6-pyridinedialdehyde. The complexes are seven-coordinate trigonal bi- pyramidal iron(II) complexes containing two axial ligands. Aerial oxidation yields iron(III) complexes, which may not be prepared directly by template condensations. The seven-coordinate iron(III) complex [FeL4Cl2]Cl has been structurally characterised (crystallographic data: space group Pna21, a=15.494(8), b=12.873(6), c=12.229(6) Å, Z=4, 4487 reflections with F≥3σ(F), R=0.0770).

Original languageEnglish
Pages (from-to)207-212
Number of pages6
JournalInorganica Chimica Acta
Issue number2
Publication statusPublished - Mar 15 1991


ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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