Table 3. Impact of Oxidation Conditions on the Observed Process Rate (k_obs) and Catalyst Turnover Frequency (TOF) of C₆H₁₂ and PHCH₃ Oxidation^a.

	C6H12							PhCH3
	H2O2	O2						H2O2		O2
	VO(acac)2	VO(acac)2			Co(acac)2			VO(acac)2		VO(acac)2	Co(acac)2
parameter	OxalH	OxalH	OxalH + NHPI	NHPI	OxalH	OxalH + NHPI	NHPI	OxalH	OxalH + NHPI	NHPI	NHPI
1	2	3	4	5	6	7	8	9	10	11	12
kobs × 103 (s–1)	10	1	1.5	2.5	0.1	0.3	3	2.2	1.3	7	37
TOF (h–1)	58	7	17	30	2	12	37	133	75	83	440

^aIn the absence of either OxalH or NHPI, only traces of products have been detected regardless of the oxidant, catalyst, and substrate used. Similarly, no products were detected as promoted by NHPI oxidation of C₆H₁₂ and PhCH₃ by H₂O₂ regardless of the nature of catalyst cations. TOF was calculated as the yield of products/catalyst per hour, mM/(mM·h).