Table 2.

The association constants for formation HSA–ruthenium(II) polypyridyl complex adducts

	K a [×105 M−1]
[Ru(dip)2(bpy)]2+	0.78 ± 0.02
[Ru(dip)2(CH3bpy-CH3)]2+	1.24 ± 0.06
[Ru(dip)2(CH3bpy-COO)]+	1.17 ± 0.04
[Ru(dip)2(CH3bpy-DCU)]2+	0.98 ± 0.03
[Ru(dip)2(bpy-NitroIm)]2+	1.10 ± 0.06