Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1519125 | Journal of Physics and Chemistry of Solids | 2007 | 8 Pages |
Abstract
Crystal structure of [Zn(hydet-en)2]·C4O4·H2O (ZHES) (hydet-en is N-(2-hydroxyethyl)ethylenediamine) complex has been synthesized and characterized by analytical, spectroscopic (IR, UV/Vis) and voltammetric techniques. After doping Cu2+ ion, its magnetic environment has been identified by electron paramagnetic resonance (EPR) technique. The title complex crystalizes in monoclinic system with space group P21/c and with Z=4. Each hydet-en ligand acts as a tridentate ligand through the two N atoms and the hydroxyl O atom, resulting in a six coordinate Zn(II) ion. The EPR spectra were recorded in three perpendicular planes of Cu2+ doped ZHES single crystal. The calculated g and A values indicated that the paramagnetic center is rhombic symmetry with the Cu2+ ion having distorted octahedral environment. The molecular orbital bond coefficients of the Cu(II) ion in d9 state is also calculated by using EPR and optical absorption parameters. The dianion SQ2â is oxidized reversibly in two consecutive steps to the corresponding radical monoanion and neutral form.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
İbrahim Uçar, Bünyamin Karabulut, Ahmet Bulut, Orhan Büyükgüngör,