Solution and solid state characterization of oxo-centered trinuclear iron(III) acetate complexes [Fe3(μ3-O)(μ-OAc)6(L)3]+.
[Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)][FeBr(4)](2)[py·H], complex (1), (OAc is acetate) was prepared from the reaction of FeBr(3) with pyridine in 1.2 molar aqueous HBr and 2.4 molar aqueous CH(3)COOH. Recrystallization of 1 in acetonitrile produced the [Fe(3)(μ(3)-O)(μ-OAc)(6)(py)(3)][FeBr(4)] complex (2). Both complexes were characterized by IR and (1)H NMR spectroscopies and their structures were studied using the single-crystal diffraction method. There is a lack of thorough characterization of the titled compounds in solution. Paramagnetic (1)H NMR is introduced as a good probe for the characterization of a family of titled compounds in solution when the L ligand coordinated to iron varies as: CH(3)OH, CH(3)CN, DMSO, H(2)O, py and acetone.
Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran 1983963113, Iran.
Vahid
V
Amani
Nasser
N
Safari
Hamid Reza
HR
Khavasi
D000085:Acetates / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005290:Ferric Compounds / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010100:Oxygen / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry; D013055:Spectrophotometry, Infrared
D000085:Acetates; D005290:Ferric Compounds; D011725:Pyridines; C023666:pyridine; D010100:Oxygen