Cationic interactions tungsten structures

The structure of Li2(U02)4(W04)40 is a rare example of a uranyl compound where O atoms of the uranyl cation are involved with polymerization of coordination polyhedra of high-valence cations. Figs. 22b and 22c show two fragments of the structure where uranyl cations interact with adjacent uranyl and tungsten polyhedra. Thus, the O atom of the [U(3)02] cation (Fig. 22b) is... 

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