Table 1.

Total Energy, relative energies and heat of formation (H.a.) for 5 and 8.

	Total energy	Sum of atomic energies	Kinetic	Electrostatic	Binding energy
5	−120.394	−1265.697	−11.406	2.934	−5.061
8	−145.743	−1474.474	−11.317	−0.569	−7.135