Temperature dependence of the spectral line width for complex europium compounds in solutions

With a view toward ascertaining the nature of the spectral-line broadening of rare-earth ions in solution, the authors investigated the temperature dependence of the luminescence of the 5Do to 7Fo transition for solutions of coordination compounds of europium with a regularly varying molecuular composition: Eu(BA) /SUP 3-n/ , where BA is benzoylacetone, and n = 1-4