title: Magnetic, electrochemical and spectroscopic properties of iron(III) amine-bis(phenolate) halide complexes.
abstract: Eight new iron(III) amine-bis(phenolate) complexes are reported. The reaction of anhydrous FeX(3) salts (where X = Cl or Br) with the diprotonated tripodal tetradentate ligands 2-tetrahydrofurfurylamino-N,N-bis(2-methylene-4,6-di-tert-butylphenol), H(2)L1, 2-tetrahydrofurfurylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenol), H(2)L2, and 2-methoxyethylamino-N,N-bis(2-methylene-4,6-di-tert-butylphenol), H(2)L3, 2-methoxyethylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenol), H(2)L4 produces the trigonal bipyramidal iron(III) complexes, L1FeCl (1a), L1FeBr (1b), L2FeCl (2a), L2FeBr (2b), L3FeCl (3a), L3FeBr (3b), L4FeCl (4a), and L4FeBr (4b). All complexes have been characterized using electronic absorption spectroscopy, cyclic voltammetry and room temperature magnetic measurements. Variable temperature magnetic data were acquired for complexes 2b, 3a and 4b. Variable temperature Mössbauer spectra were obtained for 2b, 3a and 4b. Single crystal X-ray molecular structures have been determined for proligand H(2)L4 and complexes 1b, 2b, and 4b.
authors.affiliation: Department of Chemistry, Memorial University of Newfoundland St. John's, Newfoundland A1B 3X7, Canada.
authors.forename: Rebecca K
authors.initials: RK
authors.lastname: Dean
authors.forename: Candace I
authors.initials: CI
authors.lastname: Fowler
authors.forename: Kamrul
authors.initials: K
authors.lastname: Hasan
authors.forename: Kagan
authors.initials: K
authors.lastname: Kerman
authors.forename: Philip
authors.initials: P
authors.lastname: Kwong
authors.forename: Simon
authors.initials: S
authors.lastname: Trudel
authors.forename: Daniel B
authors.initials: DB
authors.lastname: Leznoff
authors.forename: Heinz-Bernard
authors.initials: HB
authors.lastname: Kraatz
authors.forename: Louise N
authors.initials: LN
authors.lastname: Dawe
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Kozak