Photoluminescence properties of coordination compound [Eu(μ2-OC2H5)(btfa)(NO3)(phen)]2·phen

Abstract

This study presents experimental results on photoluminescence properties of europium(III) coordination complex under blue-light excitation. The complex, [Eu(μ2-OC2H5)(btfa)(NO3)(phen)]2phen {btfa = benzoyl trifluoroacetone, phen = 1,10-phenantroline}, was investigated by registering the emission and excitation spectra of powder samples at room temperature. The emission spectra show metal-centered luminescence bands, which are assigned to internal radiative transitions of the Eu3+ ion, 5D1→7Fj and 5D0→7Fj (j = 0–4). Overall, the photoluminescence spectra suggest that the europium ions are situated in a low-symmetry environment.