Energy Minimisation for Encapsulation of Two Cisplatin Molecules The table shows that the energy minimization results indicate that the Endo-N Cu2L4 cage exhibits the lowest energy among the evaluated complexes, with a value of -4486.1817 Hartree using the PBE0/LanL2DZ method. This suggests that the Endo-N Cu2L4 cage is the most stable for encapsulating two cisplatin molecules. Following this, the Endo-N Ni2L4 cage has the second lowest energy of -4432.5733