Electronic absorption spectra of tetragonal and pseudotetragonal cobalt(II). I. Dipotassium tetrafluorocobaltate, dirubidium tetrafluorocobaltate, dipotassium magnesium tetrafluorocobaltate, and dirubidium magnesium tetrafluorocobaltate

Optical absorption and EPR studies on enargite

“…Relatively one sharp band at 11855 cm -1 and two other bands in the UV-Vis spectrum (figure 2) at 15500 and and also confirms the ground state [15,16]. These values are in good agreement with the earlier reported data [17][18][19][20].…”

EPR and optical absorption spectral studies on voglite mineral

“…Based on these assignments, the octahedral field (Dq) and tetragonal field (Dt and Ds) parameters, evaluated using the formulae given in the literature, are given in Table 1. The same sign obtained for Dq and Dt indicates an axial elongation in the tetragonal field and also confirms the ground state [36,37]. Since, two copper ions are present, one will form one set and the other form another set.…”

Explanation of the g-factors and Hyperfine Structure Constants of Co2+ in Tetragonal K2ZnF4

“…The results are close to those obtained for the similar K 2 COF 4 crystal [25]. By using the optical spectrum parameters B, C, D q , D s , and D t , the parameters in (9), (11)- (13) can be calculated (There are too many, so we do not list them here).…”

“…We can estimate them reasonably from the optical spectra of a similar crystal. From the optical spectra of K 2 CoF 4 [25], and in consideration of the average …”