809028.fig.006a
(a)
809028.fig.006b
(b)
Figure 6: Normalized excitation spectra of H2tph (  nm), Eu2(tph)3(H2O)4 (I,  nm), Tb2(tph)3(H2O)4 (II,  nm), H2nda (  nm), Eu2(nda)3(H2O)6 (III,  nm), and Tb2(nda)3(H2O)6 (IV,  nm).