Theoretical calculation of substituent effects on the O− H bond strength of phenolic antioxidants related to vitamin E

JS Wright, DJ Carpenter, DJ McKay… - Journal of the American …, 1997 - ACS Publications
Calculations on phenol and a large number of phenols substituted with methyl, methoxyl,
and amino groups have yielded reliable gas-phase O− H bond dissociation energies, BDE …

Predicting the activity of phenolic antioxidants: theoretical method, analysis of substituent effects, and application to major families of antioxidants

JS Wright, ER Johnson, GA DiLabio - Journal of the American …, 2001 - ACS Publications
A procedure based on density functional theory is used for the calculation of the gas-phase
bond dissociation enthalpy (BDE) and ionization potential for molecules belonging to the …

A Critical Evaluation of the Factors Determining the Effect of Intramolecular Hydrogen Bonding on the O H Bond Dissociation Enthalpy of Catechol and of Flavonoid …

M Lucarini, GF Pedulli, M Guerra - Chemistry–A European …, 2004 - Wiley Online Library
New experimental results on the determination of the bond dissociation enthalpy (BDE)
value of 3, 5‐di‐tert‐butylcatechol, a model compound for flavonoid antioxidants, by the EPR …

Naphthalene diols: A new class of antioxidants intramolecular hydrogen bonding in catechols, naphthalene diols, and their aryloxyl radicals

MC Foti, ER Johnson, MR Vinqvist… - The Journal of …, 2002 - ACS Publications
1, 8-Naphthalenediol, 5, and its 4-methoxy derivative, 6, were found to be potent H-atom
transfer (HAT) compounds on the basis of their rate constants for H-atom transfer to the 2, 2 …

A computational analysis of substituent effects on the O− H bond dissociation energy in phenols: polar versus radical effects

T Brinck, M Haeberlein, M Jonsson - Journal of the American …, 1997 - ACS Publications
O− H bond dissociation energies (BDEs) of phenol, p-aminophenol, and p-nitrophenol have
been computed using ab initio and density functional theory (DFT) methods. The MP2 and …

A Density Functional Study of Substituent Effects on the O−H and O−CH3 Bond Dissociation Energies in Phenol and Anisole

YD Wu, DKW Lai - The Journal of organic chemistry, 1996 - ACS Publications
The substituent effects on O− H and O− CH3 bond dissociation energies for a series of 18
para-substituted phenols (p-XC6H4OH) and 11 para-substituted anisoles have been studied …

Critical re-evaluation of the O− H bond dissociation enthalpy in phenol

P Mulder, HG Korth, DA Pratt, GA DiLabio… - The Journal of …, 2005 - ACS Publications
The gas-phase O− H bond dissociation enthalpy, BDE, in phenol provides an essential
benchmark for calibrating the O− H BDEs of other phenols, data which aids our …

Determination of the substituent effect on the O− H bond dissociation enthalpies of phenolic antioxidants by the EPR radical equilibration technique

G Brigati, M Lucarini, V Mugnaini… - The Journal of organic …, 2002 - ACS Publications
The bond dissociation enthalpies (BDE) of several phenols containing electron-withdrawing
substituents in the para position have been determined by means of the EPR radical …

Antioxidant activity of phenolic and related compounds: a density functional theory study on the O–H bond dissociation enthalpy

C Giacomelli, FS Miranda, NS Gonçalves… - Redox …, 2004 - Taylor & Francis
We report here on calculations at the hybrid DFT/HF (B3-LYP/6-31G (d, p)) level of the O–H
bond dissociation enthalpy (O–H BDE) of phenylpropenoic acids (caffeic, ferulic, p-coumaric …

Substituent Effects on O H Bond Dissociation Enthalpies and Ionization Potentials of Catechols: A DFT Study and Its Implications in the Rational Design of Phenolic …

HY Zhang, YM Sun, XL Wang - Chemistry–A European Journal, 2003 - Wiley Online Library
Density functional theory (DFT) on B3LYP/6‐31G (d, p) level was employed to investigate
the substituent effects on O H bond dissociation enthalpies (BDEs) and ionization …