Table 1. Lipophilicity of complexes C1–C11 .

Complex	Log Pa
C1	1.21
C2	1.12
C3	1.08
C4	1.08
C5	0.94
C6	1.56
C7	1.78
C8	1.86
C9	1.55
C10	1.41
C11	1.83

^aPartition coefficient P = C_o/C_w (C_o and C_w are the complex concentrations in n-octanol and water, respectively); absorbance at 371 nm.