A 3-D lanthanide-organic framework based on in situ formed benzene-1,2,3,4-tetracarboxylate ligand

摘要

One new 3-D open lanthanide-organic framework {[La2(L)_(1.5)(H2O)4]·2.75H2O}_n (1) (L = benzene-1,2,3,4-tetracarboxylate) was synthesized and characterized by elemental analyses, IR spectrum, and single-crystal X-ray diffraction, respectively. Notably, 1,2-naphthalenedicarboxylic anhydride can be turned into benzene-1,2, 3,4-tetracarboxylate (L) ligand upon an in situ reaction process under hydrothermal conditions. L ligand exhibited two different types of carboxyl coordination modes in t, and bridged the lanthanum atoms to form a 2-D bilayer and then a 3-D open framework with (4,5,6)-connected (4~2.8~4) (3~2.4~4.5~2.6~2)4(3~2.4~5.5~3.6~4.7)2 topology. Moreover, luminescent properties of 1 have also been investigated.