SELECTIVE EXCITATION OF COORDINATED Tm(IV) VIA INTRA- MOLECULAR ENERGY TRANSFER
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Date
1961
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Publisher
Ohio State University
Abstract
Excitation of lanthanide chelates with near ultraviolet light results in line emission from the rare earth ion whenever the lowest triplet level of the complex lies above or very near to the resonance level of the ion. By a suitable choice of chelating agents it has been possible to selectively excite the $^{1}G_{4}$ energy level of the Tm(IV) ion, thereby permitting a conclusive assignment of the combining states of the observed radiative transitions. These assignments are in agreement with the spectroscopic work on Tm(IV) embedded in $CaWO_{4}$. Preliminary results on crystal field splitting of Tm(IV) energy levels will be presented.
Description
Author Institution: Department of Chemistry, University of New Mexico