Metalloprisms are another common type of coordination cage. They can be assembled from planar modules linked with column-like ligands.
One illustrative synthesis starts with [(η-p-cymene)Ru(μ-tpt-κN)(μ-CHRO- κO)] using the linker of 2,4,6-tri(pyridine-4-yl)-1,3,5-triazine (tpt).  Various guest molecules have been encapsulated in the hydrophobic cavity of metallaprisms.   A few examples of guests are bioconjugate derivatives, metal complexes, and nitroaromatics.