The encapsulation abilities of various metallacages for cisplatin, as summarized in Table . Every single metallacage showed the encapsulation of a single cisplaint. Also, except for endo-C Ni2L4 and endo-C Cu2L4, the other three metallacages could also encapsulate the two molecules of cisplatin (Table ). For each cage, the ability to encapsulate one or two molecules of cisplatin is indicated as "Yes" (successful encapsulation) or "Fail" (unsuccessful encapsulation).