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Two dimeric head-on complexes of yttrium containing silico- and germanotungstate were isolated from the one-pot reaction of Y(NO 3 ) 3 ·6H 2 O with the lacunary Na 10 [MW 9 O 34 ]·16H 2 O (M=Si and Ge) building blocks in an acetate buffer at pH 4.5. Both polyanions were structurally characterized using various solid-state analytics, such as single-crystal...
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