Characterization of Anthraquinone-DerivedRedox Switchable Ionophores and Their Complexes with Li⁺, Na⁺, K⁺, Ca⁺, and Mg⁺ Metal Ions

Table 1

Properties of isolated complexes of alkali and alkaline earth metal salts with anthraquinone-derived ionophore V₂.

Ionophores	Complex	Solvent	M.P. (°C)	Elemental analysis (%)
				C%	H%	N%	M%
V2			45	C: 66.09	6.83	—	—
				F: 66.04	6.72	—	—
	V2LiPic	Methanol	160	C: 48.41	3.82	8.91	1.47
				F: 48.45	3.80	8.85	1.43
	V2NaPic	Methanol	125	C: 46.82	3.69	8.62	4.70
				F: 47.10	3.69	8.31	4.73
	V2KPic	Methanol	130	C: 51.96	4.60	5.68	5.27
				F: 50.47	4.62	5.61	5.25
	V2Ca(Pic)2	Methanol	145	C: 47.10	3.71	8.67	4.13
				F: 46.75	3.69	8.63	4.11
	V2Mg(Pic)2	Methanol	110	C: 47.89	3.78	8.82	2.52
				F: 47.53	3.71	8.79	2.57