Effect of Counterion on the Solvatochromic Properties of Heteroleptic Chelate Copper(II) Complexes

Table 2

Molar conductivities data (Λ_𝑚) of the complexes (Ω⁻¹ cm² mol⁻¹, at 25°C)a in different solvents.b

Complex	CH2Cl2	CH3CN	EtOH	Acetone	DMF
[Cu(L)(acac)]ClO4	6	136	48	129	86
[Cu(L)(acac)]B(Ph)4	7	144	25	91	60
[Cu(L)(acac)]PF6	3	151	46	133	68
[Cu(L)(acac)]BF4	7	126	35	141	78
1 : 1 electrolytes	10–20	120–160	35–45	100–140	65–90

^a Concentration: ca.1 × 10⁻³ M.
^bdata for standard values taken from [17].