Designed synthesis of POM-organic frameworks from {Ni₆PW ₉} building blocks under hydrothermal conditions

Directed combination of {Ni₆PW₉} building blocks with various rigid carboxylate linkers under hydrothermal conditions yields a series of unprecedented polyoxometalate-organic frameworks (POMOFs) with remarkable structural diversity including 1D, 2D, and 3D structures based on monomers, dimers, or infinite helical chains (see picture for 3D structure: WO ₆: red; NiO₆: green; PO₄: yellow; 1,2,4-benzenetricarboxylate: gold). (Figure Presented).