Table 2.

Relative Energies (eV), Symmetries and Electronic States of the Low-energy Isomers of G₂M₂ ²⁺ Cluster Ions.

	Isomers	Sym.	State	ΔE (eV)
				PBE/TZ2P	CAMY-B3LYP	COSMO
G2Cu2 2+	1A	C2h	1Ag	0.00	0.00	0.00
	1B	C2V	1A1	0.08	0.07	0.04
	1C	Cs	1A′	1.34	1.32	1.28
G2Ag2 2+	2A	C2h	1Ag	0.00	0.00	0.00
	2B	C2V	1A1	0.05	0.05	0.02
	2C	Cs	1A′	0.68	0.66	0.62
G2Au2 2+	3A	C2h	1Ag	0.00	0.00	0.00
	3B	C2	1A	0.10	0.09	0.06
	3C	Cs	1A′	1.28	1.26	1.23