NMR Studies into the Potential Interactions of Fullerene C_𝟔𝟎 with Tetraphenylporphyrin and Some of Its Derivatives

Table 2

¹H relaxation Rates of phenyl Hydrogen in H₂ [TPP] with and without C₆₀ in chlorobenzene-d₅.

T (K)	H2[TPP] in CBZ		H2[TPP] with C60 in CBZ
	𝑅1 (1/s)	τ C (ps)	𝑅1 (1/s)	τ C (ps)
268	0.821 (0.004)	232	0.821 (0.008)	232
283	0.752 (0.006)	213	0.729 (0.009)	206
298	0.606 (0.012)	171	0.660 (0.019)	187
313	0.576 (0.008)	163	0.557 (0.010)	158
328	0.469 (0.009)	132	0.470 (0.011)	132

Values in parentheses represent error limits at the 90% confidence level.