Two new two-dimensional layered uranyl-bearing polycarboxylates from semi-rigid tetracarboxylic acids

Abstract

Two new uranyl-bearing tetracarboxylates with interesting structures have been synthesized from two semi-rigid tetracarboxylic acids. Both compounds 1 and 2 display two-dimensional layered structures, but 1 is assembled from corner-sharing UO₅F₂ polyhedra and hexadentate tetracarboxylate ligands whereas 2 is constructed from discrete UO₇ polyhedra and pentadentate tetracarboxylate ligands.