EXCITATION SPECTRA OF THE “R” LINE OF $d^{3}$ IONS IN OCTAHEDRAL FIELDS
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Date
1964
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Weak d electron transitions of $V^{2+}$ and $Cr^{3+}$ ions in doped MgO may be obscured by far more intense charge-transfer bands such as those due to $Fe^{3+}$. Both the $V^{2+}$ and $Cr^{3+}$ display a sharp-line fluorescence ($^{2}E\longrightarrow ^{4}A_{2}$), very similar to that of the R-lines in ruby. Hence one may demonstrate existence of weak absorption bands by measuring the excitation spectrum of this fluorescence. The higher energy $^{4}A_{2}\longrightarrow ^{4}T_{1}$ which has not heretofore been observed for $V^{2+}$ and $Cr^{3+}$ has been established in this way. A band reported by $Low^{1}$ is not observed.
Description
$^{1}$ W. Low. Phys. Rev. 105, 801 (1957).
Author Institution: Department of Chemistry, University of Minnesota
Author Institution: Department of Chemistry, University of Minnesota