The electronic structure of CrO43- as studied by EPR in K2SO4 single crystals

EPR and ENDOR investigations are carried out on irradiated K2SO4 crystals doped with CrO42− ions. They indicate the formation of CrO43− centers interacting with a nearby proton. The identification of the CrO43− centers is based on their g values, the orientation of the g tensor and the symmetry requirements. The results are compared with related studies on MnO42− in K2SO4 and K2CrO4 hosts