The coordination polymers, R2(C8H10O4)3, (R= Y, Eu, and Tb; C8H10O4 = 1,4-cyclohexanedicarboxylate, CHDC) have been synthesized under mild-hydrothermal conditions. Single crystal and powder X-ray diffraction data of these compounds were obtained to determine their crystal structures and confirm their purity. The photoluminescence (PL) spectra, excitation spectra, and time-resolved spectra of these luminescent crystals were acquired. We proposed a kinetics model which successfully explains the energy transfer processes between luminescent centers and the related rate constants are obtained. In the YEuxTb1-x(CHDC)3 compounds, the energy transfer rate is determined by the contact probability, whereas in the EuxTb2-x(CHDC)3 compounds, the energy transfer is dominated by the Tb-Tb energy migration rate.

Spectroscopic study of energy transfer processes in the R2(C8H10O4)3 coordination polymers

251st National Meeting (2016)

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