title: Synthesis and characterization of a tris(2-hydroxyphenyl)methane-based cryptand and its triiron(III) complex.
abstract: Reaction of tris(5-amino-2-ethoxy-3-isopropylphenyl)methane and pyridine-2,6-dicarbonyl-dichloride affords a multi-dentate cryptand in 48% yield. Metallation with iron(III) chloride results in a substantial conformational change of this ligand to give a trianionic triiron(III) complex. Ferric cations line the periphery of the internal cavity with each adopting a square pyramidal N(3)Cl(2) coordination environment.
authors.affiliation: Department of Chemistry, Center for Catalysis, University of Florida, Gainesville, FL 32611-7200, USA.
authors.forename: Gary L
authors.initials: GL
authors.lastname: Guillet
authors.forename: Forrest T
authors.initials: FT
authors.lastname: Sloane
authors.forename: Matthieu F
authors.initials: MF
authors.lastname: Dumont
authors.forename: Khalil A
authors.initials: KA
authors.lastname: Abboud
authors.forename: Leslie J
authors.initials: LJ
authors.lastname: Murray
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques; D004988:Ethers, Cyclic / Q000138:chemical synthesis / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D008024:Ligands; D008968:Molecular Conformation; D011725:Pyridines; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D004988:Ethers, Cyclic; D005290:Ferric Compounds; D008024:Ligands; D011725:Pyridines; D012545:Schiff Bases; C444241:cryptand; C023666:pyridine