title: Synthesis and structure of iron(iii) diamine-bis(phenolate) complexes.
abstract: The structures and properties of six new iron(iii) diamine-bis(phenolate) complexes are reported. Reaction of anhydrous FeX(3) salts (where X = Cl or Br) with the diprotonated tripodal tetradentate ligands 2-pyridylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenol), H(2)[L(1)], and N,N-dimethyl-N',N'-bis(2-methylene-4-methyl-6-tert-butylphenol)ethylenediamine, H(2)[L(2)], produces the trigonal bipyramidal iron(iii) complexes, [L(1)]FeCl , [L(1)]FeBr , [L(2)]FeCl and [L(2)]FeBr . Reaction of FeX(3) with the related linear tetradentate ligand N,N'-bis(4,6-tert-butyl-2-methylphenol)-N,N'-bismethyl-1,2-diaminoethane, H(2)[L(3)], generates square pyramidal iron(iii) complexes, [L(3)]FeCl and [L(3)]FeBr . Complexes have been characterized using electronic absorption spectroscopy and magnetometry. Single crystal X-ray molecular structures have been determined for complexes 1, 3, 5 and 6.
authors.affiliation: Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, Canada.
authors.forename: Kamrul
authors.initials: K
authors.lastname: Hasan
authors.forename: Candace
authors.initials: C
authors.lastname: Fowler
authors.forename: Philip
authors.initials: P
authors.lastname: Kwong
authors.forename: Angela K
authors.initials: AK
authors.lastname: Crane
authors.forename: Julie L
authors.initials: JL
authors.lastname: Collins
authors.forename: Christoper M
authors.initials: CM
authors.lastname: Kozak
mesh_terms: D018360:Crystallography, X-Ray; D003959:Diamines / Q000737:chemistry*; D005290:Ferric Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D007501:Iron / Q000737:chemistry*; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D013237:Stereoisomerism; D013696:Temperature
chemical_list: D003959:Diamines; D005290:Ferric Compounds; D008024:Ligands; D010636:Phenols; D007501:Iron