Fig. 1. The range of mono- and bi-aromatic di-carboxylic acids investigated in this work, combined with the three lanthanides Tb, Eu and Y. Using terephthalic acid and Tb as a base system, four paths of molecule variations are explored. (1) Other binding group in H2bdo and H2bdt, (2) halogenated H2bdc-F and H2bdc-Br, (3) functionalized H2bdc-NH2 and H2bdc-2OH, and (4) the larger conjugated system H2bpdc and H2ndc.
