Intramolecular Energy Transfer The Fluorescence of Complexes of Europium

Author:

Weissman S. I.1

Affiliation:

1. Department of Chemistry, University ef California, Berkeley, California

Publisher

AIP Publishing

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Reference9 articles.

1. O. Deutschbein and R. Tomascheck, Ann. d. Physik 29, 311 (1937);

2. H. Gobrecht, Ann. d. Physik 28, 673 (1937). Except for the continuous absorption at wave‐lengths lower than 2500A, the rare earth ion absorptions are weak and narrow, and as a result excitation of moderate intensities of luminescence require great intensities of exciting light.

3. Eu(C6H4CHOO)3, a non‐ionic compound, insoluble in water, very soluble in benzene.

4. A line at 5790A, a group at 5880A, a group at 6100A.

5. The measurements were made with a Weston photronic cell Model 594, type 2. The solution was contained in a Pyrex cell 1 cm deep; in such a cell there is total absorption of the exciting radiation—the 3200A–4000A region from a high pressure mercury arc.

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