Table 3.

Effective Atomic Charges of the Lowest-energy Isomer (1 A, 2 A, and 3 A) of G₂M₂ ²⁺ Cluster Ions.

	M	Hirshfeld charge	Voronoi charge	MDC-q
G2Cu2 2+	Cu1, Cu2	0.29	0.27	0.39
	N1, N2	−0.11	−0.13	−0.40
	O1, O2	−0.21	−0.22	−0.42
G2Ag2 2+	Ag1, Ag2	0.34	0.30	0.53
	N1, N2	−0.11	−0.13	−0.50
	O1, O2	−0.23	−0.23	−0.49
G2Au2 2+	Au1, Au2	0.22	0.18	0.43
	N1, N2	−0.08	−0.09	−0.50
	O1, O2	−0.20	−0.19	−0.48