ev1 0.07[V] "Energy of the 1st vibrational level" ev2 0.14[V] "Energy of the 2nd vibrational level" ev3 0.21[V] "Energy of the 3rd vibrational level" eionCl2 11.5[V] "Cl2 ionization energy" eionCl 14.25[V] "Cl ionization energy" eCl52 10.17[V] "Cl52 excitation energy" eCl12 1.35[V] "Cl12 excitation energy" eatt 2.36[V] "Cl- energy" ediss 4[V] "Cl2 dissociation energy"