Why are sec-alkylperoxyl bimolecular self-reactions orders of magnitude faster than the analogous reactions of tert-alkylperoxyls? The unanticipated role of CH hydrogen bond donation

Literature Information

Publication Date 2016-08-03
DOI 10.1039/C6CP04670C
Impact Factor 3.676
Authors

Richmond Lee, Ganna Gryn'ova, K. U. Ingold, Michelle L. Coote


View Original

Abstract

High-level ab initio calculations are used to identify the mechanism of secondary (and primary) alkylperoxyl radical termination and explain why their reactions are much faster than their tertiary counterparts. Contrary to existing literature, the decomposition of both tertiary and non-tertiary tetroxides follows the same asymmetric two-step bond cleavage pathway to form a caged intermediate of overall singlet multiplicity comprising triplet oxygen and two alkoxyl radicals. The alpha hydrogen atoms of non-tertiary species facilitate this process by forming unexpected CH⋯O hydrogen bonds to the evolving O2. For non-tertiary peroxyls, subsequent alpha hydrogen atom transfer then yields the experimentally observed non-radical products, ketone, alcohol and O2, whereas for tertiary species, this reaction is precluded and cage escape of the (unpaired) alkoxyl radicals is a likely outcome with important consequences for autoxidation.

Related Literature

Effect of chloride salts and microwaves on polyethylene terephthalate (PET) hydrolysis by iron chloride/acetic acid Lewis/Brønsted acidic deep eutectic solvent

Marco Rollo, Massimo A. G. Perini, Alessandro Sanzone, Lorenzo Polastri, Matteo Tiecco, Alejandro Torregrosa-Chinillach, Elisa Martinelli, Gianluca Ciancaleoni

2023-11-21 Paper

DOI: 10.1039/D3SU00205E

Biological and postharvest interventions to manage the ethylene in fruit: a review

Ram Asrey, Swati Sharma, Kalyan Barman, Uma Prajapati, Narender Negi

2023-06-29 Review Article

DOI: 10.1039/D3FB00037K

Food waste: environmental impact and possible solutions

Ravindra Prajapati, Raj Shah, Mrinaleni Das, Brajendra K. Sharma

2023-12-05 Review Article

DOI: 10.1039/D3FB00141E

The effects of lignin source and extraction on the composition and properties of biorefined depolymerization products

Natalia Obrzut, Rob Hickmott, Lily Shure, Kimberly A. Gray

2023-10-27 Paper

DOI: 10.1039/D3SU00262D

Developing 3D computational models to capture the spatial, temporal and thermal behavior as laser beams propagate through photo-thermally responsive gels

Victor V. Yashin, Fariha Mahmood, Kalaichelvi Saravanamuttu, Anna C. Balazs

2023-11-16 Paper

DOI: 10.1039/D3LF00156C

Contents list

2024-01-03 Front/Back Matter

DOI: 10.1039/D4SU90003K

Interactions between liquid ammonia and graphitic materials

Cheng-Wei Lin, Zhiyin Yang, Ailun Huang, Xueying Chang, Chenxiang Wang, Fan Yang, Chen Wei, Markus Thiel, Yuto Katsuyama, Lihua Jin

2023-12-18 Paper

DOI: 10.1039/D3LF00194F

You might also like

Compound Q&A

Is 2-(2-chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) safe?

2-(2-Chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) is generally consi...

7765-11-92-(2-chloroacetamido...
Compound Q&A

Is 2-(Benzyloxy)-5-bromobenzoic acid (CAS: 62176-31-2) safe?

2-(Benzyloxy)-5-bromobenzoic acid can be handled safely if appropriate precautio...

62176-31-22-(Benzyloxy)-5-brom...
Compound Q&A

What is (4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride (CAS: 1159825-48-5)?

(4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride is a chemical compound ...

1159825-48-5(4-Methyl-1,2,5-oxad...
Compound Q&A

What is 2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54-7)?

2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54...

917985-54-72-(5-Hexylthiophen-2...
Compound Q&A

Are there alternatives to 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS: 102771-26-6) in synthesis?

While 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS:...

102771-26-64-(8-Methyl-9H-1,3-d...
Compound Q&A

What is the market or research trend for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine-6-carboxylate (CAS: 851376-80-2)?

The market for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine...

851376-80-2tert-butyl 3-hydroxy...
Compound Q&A

How should waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) be handled?

Waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) should ...

6844-58-23,5-Diamino-1H-pyraz...
Compound Q&A

How is (6-Fluoro-3-pyridinyl)boronic acid (CAS: 351019-18-6) typically synthesized?

(6-Fluoro-3-pyridinyl)boronic acid can be synthesized through the reaction of 6-...

351019-18-6(6-Fluoro-3-pyridiny...
Compound Q&A

What industries use Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9)?

Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9) finds applications in vario...

10065-79-9Dibenzyl carbonimido...
Compound Q&A

What is the market or research trend for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4)?

The market for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4) is g...

74228-83-4(beta,beta,2,3,4,5,6...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.