Magnetic properties of samples of S-NPs and D-NPs.

Radicals	T conv a/K		θ b/K	J exp c/K	J exp d/K
S-NPs	123	0.2495		+279.715	+66.89
D-NPs	73	0.2897		+254.913	+41.54

^aThe T_conv refers to the transition temperature of the χ_mT curve.

^b θ (K) represents the Weiss temperature.

^cObtained from SQUID.

^dObtained from VT-EPR.