A series of pure inorganic eight-connected self-catenated network based on Silverton-type polyoxometalate

In this paper, three pure inorganic eight-connected self-catenated networks based on the Silverton-type polyoxometalate [CeMo12O42]8− with lanthanide, transition metal and alkali metal cations as linkers: [Li(H2O)4]2Co(H2O)4Ce(H2O)3[CeMo12O42]·3H2O (1), H0.5[Li(H2O)4]2.5[Ni(H2O)4]0.5Ce(H2O)3[CeMo12O42]·3H2O (2) and H[Li(H2O)4]3Ce(H2O)3[CeMo12O42]·3H2O (3) have been successfully synthesized and characterized by elemental analysis, IR spectroscopy, thermal gravimetric analysis, X-ray photoelectron spectroscopy, electrochemical analyses and single crystal X-ray diffraction. The single crystal X-ray diffraction analyses reveal that compounds 1–3 are isostructural. The [CeIVMo12O42]8− polyoxoanions are connected by Ce4+ to form the infinite 1D chains. And then the parallel stacking chains linked by transition metal cations and lithium ions construct to an eight-connected self-catenated 424563 topology framework.

Graphical AbstractThree extended frameworks based on Silverton-type polyoxometalate have been successfully synthesized. In these compounds, [CeIVMo12O42]8− clusters are connected by lanthanide, transition metal and Li+ to form a 424563 network.Figure optionsDownload full-size imageDownload as PowerPoint slide