Table 2.

Thermodynamic parameters of pBeets and mepBeets for the three most common radical scavenging mechanisms. ^a.

Species b	ET-PT		HAT/PCET	SPLET		PhO•→PhOH
	IP	PDE	BDE	PA	ETE	ΔBDEPhOH
pBeet	456
N9		82	352	139	399	–11
N1		110	380	161	405	17
mepBeet	455
N1		108	377	164	399	14
m-OH-pBeet c	459
N9		79	352	140	398	–12
ArO		96	369	154	401	5
N1		109	382	162	406	18
m-OH-mepBeet	456
ArO		99	369	154	401	6
N1		108	378	164	400	15

^a Values (in kJ mol⁻¹) were calculated using Equations (1)–(6), see Methods. ^b Species refer to the parent species and the deprotonation site (Figure 3c). ^c from Reference [27].