Английская Википедия:Europium acetylacetonate

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Шаблон:Chembox

Europium acetylacetonate is a coordination complex with formula Eu(C5H7O2)3. Although this anhydrous acetylacetonate complex is widel discussed,[1] some sources suggest that it is really the dihydrate Eu(C5H7O2)3(H2O)2.[2][3]

Upon attempted dehydration by heating under vacuum, the dihydrate converts to the oxo-cluster Шаблон:Chem2. This behavior is also observed for gadolinium acetylacetonate, yttrium acetylacetonate, lanthanum acetylacetonate, and erbium acetylacetonate.[4]

The electronic structure of the Шаблон:Chem core gives the complex an unusual charge-transfer band absent in other lanthanide acetylacetonates.[5] The photoluminescent emission lines occur near 465 (blue), 525 (green), and 579 nm (yellow), and are unusually sharp, especially the yellow doublet.[6] Doping a blend of polyacrylate and polycarbonate with europium acetylacetonate enhances photoluminescence over a broad range of ultraviolet wavelengths.[7] EuFOD is a substituted derivative.

References

Шаблон:Reflist

Шаблон:Europium compounds Шаблон:Acetylacetonate complexes


Шаблон:Organic-compound-stub