Photophysical data for chloride salts of mer- and fac-1²⁺–3²⁺ in aqueous solution.

	λ em a/nm	Φ em b , d/% (τ/ns)	Φ em c , d/% (τ/ns)
mer-12+	621	3.9 (365)	7.9 (748)
fac-12+	623	3.8 (350)	8.4 (715)
mer-22+	637	2.3 (191)	2.9 (242)
fac-22+	640	2.5 (171)	3.2 (217)
mer-32+	696	0.6 (83)	0.6 (92)
fac-32+	698	0.7 (98)	0.8 (110)

^a λ _ex = 500 nm.

^bAerated aqueous solution.

^cN₂-equilibrated aqueous solution.

^dRelative to [Ru(bpy)₃][PF₆]₂, Φ = 1.8% in aerated MeCN.