An EPR and optical absorption study of VO2+ ions in di-ammonium hydrogen citrate [(NH4)2C6H6O7] single crystals

Add time:07/18/2019    Source:sciencedirect.com

Single crystal and powder EPR studies of VO2+ doped di-ammonium hydrogen citrate [(NH4)2C6H6O7] are carried out at room temperature. The angular variation of the EPR spectra show three different VO2+ complexes that are located in different chemical environment, and each environment contains two magnetically inequivalent VO2+ sites in distinct orientations occupying substitutional positions in the lattice. Crystalline field around the VO2+ ion is nearly axial. The optical absorption spectrum shows two bands centred at 16,949 and 12,345 cm−1. Spin Hamiltonian parameters and molecular orbital coefficients are calculated from the EPR and optical data, and results are discussed.

We also recommend Trading Suppliers and Manufacturers of Ammonium citrate dibasic (cas 3012-65-5). Pls Click Website Link as below: cas 3012-65-5 suppliers

Prev:Liquid-liquid equilibrium of the ternary ammonium salt + poly(propylene glycol) + water system
Next:A new pentadecanuclear manganese(II,III) tert-butylphosphonate cluster: Crystal structure and magnetic behaviour)