Sequential Isomerization of a Macrocyclic Polyoxometalate Archetype

Controlled isomerization of individual {α-P2W12O48} polyoxotungstate building blocks under the constricted conditions of the macrocyclic [P8W48O184]40– archetype ({P8W48}) is linked to site-specific CuII coordination. The derivatives [αγαγ-P8W48O184{Cu(H2O)}2]36– (1), [γγγγ-P8W48O184{Cu(H2O)0.5}4]32– (2), and [αγγγ-P8W48O184{Cu(H2O)}3]34– (3) feature the {αγαγ-P8W48} and the hitherto unknown {γγγγ-P8W48} and {αγγγ-P8W48} isomers based on...