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Abstract
Three new analogues of Tb-UiO-66 with various functional groups (–F, –Br, –NH2) on the terephthalic acid linker of the metal–organic framework (MOF) are synthesized and characterized. The photoluminescent properties of these analogues, as well as Tb-UiO-66 and Tb-UiO-66-(OH)2, are studied and correlated to the calculated energies for the triplet (T1) states of each linker. The results show that the addition of electron withdrawing groups, such as –F and –Br, lead to higher T1 energies, resulting in quantum yields in the range of 6-31 %. The addition of electron donating groups, on the other hand, lowers the T1 energy of the organic linker and inhibits energy transfer such that emission is not observed.
Supplementary materials
Title
SI
Description
Optical microscopy and SEM images, crystallographic data tables, ICP analysis, 1H NMR, DRIFTS, UV-Vis, PL spectra, computational results not included in the manuscript
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Title
Cartesian Coordinates
Description
Text file of all computed molecule Cartesian coordinates in a format for convenient visualization
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