Effect of coordination environment of Eu2+ ion on the 5d-4f luminescence of molecular compounds EuL2(THF) (L = Cl, Br, I, NO3, Ac, fod, tmhd, and acac; x = 0, 2)статья
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Дата последнего поиска статьи во внешних источниках: 17 февраля 2021 г.
Аннотация:The photoluminescence spectra of crystalline europium dihalides EuL2 (L = Cl, Br, and I) and solutions of complexes of divalent europium EuL2(THF)2 (L = Cl, NO3, fod, tmhd, acac, Ac) in tetrahydrofuran were registered. The bathochromic shift of the Eu2+ 5d-4f luminescence maxima is typical for all studied compounds. Its value decreases in the series Cl– > Br– > NO3– > Ac– > acac– > fod– > tmhd– and correlates well with the mean polarizabilities of the anionic ligands.