title: Structure of iron ions in some acetone based electrolytes.
abstract: X-ray absorption, Mössbauer, and Raman spectroscopy were combined to determine the local environment of iron ions in acetone based solutions of FeCl2. It is shown that part of the Fe(II) ions change their oxidation state, accompanied by symmetry change from octahedral Fe(H2O)6(2+) to tetrahedral [FeCl4](-) at large acetone concentrations. The ratio of Fe(II)/Fe(III) determined by Mössbauer spectroscopy agrees well with that determined by the X-ray absorption studies. Raman measurements confirm quantitative estimations of [FeCl4](-) species in acetone rich solutions.
authors: Faculty of Physics, University of Bialystok, ul. Lipowa 41, 15-424 Białystok, Poland. wojtek@alpha.uwb.edu.pl
authors: Wojciech
authors: W
authors: Olszewski
authors: Krzysztof
authors: K
authors: Szymański
authors: Dariusz
authors: D
authors: Satuła
authors: Beata
authors: B
authors: Kalska-Szostko