Two New Isopolyoxotungstates(VI) with the Empirical Composition Cs2 W2 O7 ⋅2 H2 O and Na2 W2 O7 ⋅H2 O: An Icosatetratungstate and a Polymeric Compound.


The largest isopolyoxotunstate ion known to date, W24 O8424- (structure shown in the picture), isolated as the cesium salt, and a chainlike polyoxotungstate ion made up of planar W4 O16 units, isolated as the sodium salt, hide behind the simple empirical formulas of the title compounds. 
DOI: 10.1002/(SICI)1521-3773(19981016)37:19<2668::AID-ANIE2668>3.0.CO;2-8


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