Table 2. Model Parameters from Equation 8 Fit to the Temperature and Concentration Dependence of 1/T_M (Figure 4).

	Gd-DOTA	Gd-PyMTA
A1 (×10–3)	1.5 ± 0.1	0.9 ± 0.3
A2 (μs)	1.4 ± 0.2	1.4 ± 0.4
C	1.2 ± 0.1	1.8 ± 0.1
Γ (μs–1)	0.05 ± 0.01	0.05 ± 0.01
rc (nm)	7.7 ± 0.3	7.7 ± 0.8