Table 3. Magnetic Moments and Dissociation of the Complexes in D₂O.

complex	μeffa	% dissociation acidicb	% dissociation anionsc	% dissociation Zn∥d
[Ni(L)]2+	3.4	18 ± 0.3	0	54 ± 0.6
[Co(L)]2+	4.1	16 ± 10	0	13 ± 0.1
[Fe(L)]2+	5.9	21 ± 0.1	11	I5 ± 0.1

^aThe effective magnetic moment in solution at 25 °C.

^b9.8–10 mM complex, 3–5 mM 3-(trimethylsilyl)-1-propanesulfonic acid sodium salt as standard, 100 mM NaCl in D₂O pD 3.9–4.3.

^c10 mM complex, 100 mM NaCl, 1–3 mM 3-(trimethylsilyl)-1-propanesulfonic acid sodium salt, 0.4 mM Na₂HPO₄, and 25 mM K₂CO₃ in D₂O pD 7.5–8.

^d10 mM complex, 100 mM NaCl, 5 mM 3-(trimethylsilyl)-1-propanesulfonic acid sodium salt, and 10 mM ZnCl₂ in D₂O pD 6.9–7.0. All samples were incubated for 12 h at 37 °C.