Entangled structures in polyoxometalate-based coordination polymers

- We have reviewed a good number of POM-based coordination polymers with entangled structures.
- Different topological concepts are employed to describe the various types of these polymers.
- Further classification is based on the dimensionalities of the individual motifs and the roles of the POMs.
- The unique characteristics of the POMs make them perfect templates and linkers in the formation of these structures.