AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL

An Insilco study was carried out on the thermochemistry, mechanism and kinetics of the Hydrogen abstraction reaction of 1,1-difluoro-2-methoxypropane (CH3CH(OCH3)CHF2) with the Bromine monoxide radical (BrO) using the Density Functional Theory (DFT) based M06-2X/6-311++G** method. The energy values...

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Main Authors: Mohammed Abubakar Rufai, Uzairu Adamu, Shallangwa Gideon, Sani Uba
Format: Article
Language:English
Published: Universidade Federal de Viçosa (UFV) 2019-03-01
Series:The Journal of Engineering and Exact Sciences
Subjects:
Online Access:https://periodicos.ufv.br/ojs/jcec/article/view/2541
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author Mohammed Abubakar Rufai
Uzairu Adamu
Shallangwa Gideon
Sani Uba
author_facet Mohammed Abubakar Rufai
Uzairu Adamu
Shallangwa Gideon
Sani Uba
author_sort Mohammed Abubakar Rufai
collection DOAJ
description An Insilco study was carried out on the thermochemistry, mechanism and kinetics of the Hydrogen abstraction reaction of 1,1-difluoro-2-methoxypropane (CH3CH(OCH3)CHF2) with the Bromine monoxide radical (BrO) using the Density Functional Theory (DFT) based M06-2X/6-311++G** method. The energy values were immediately improved via optimization at DFT/M06-2X/6-311++G(2df,2p) level (single-point calculations) of the reacting species involved. The Monte Carlo search on the investigating hydrofluoroether (HFE) showed nine conformers with the lowest global minimum conformer being predicted and considered for this work. The results of this study showed that the atmospheric oxidation reaction of CH3CH(OCH3)CHF2 with the BrO radical proceeded in four (4) plausible reaction routes. The  total experimental rate of 4.34*10-06 cm-3 molecule-1 sec-1 for HFE + BrO reaction was estimated with atmospheric lifetime (ALT)/global warming potential (GWP) of 1.80 years and 165.30 respectively. The 3D potential energy surfaces (PES) for the reaction was however constructed at absolute temperature of 298.15 K.
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spelling doaj.art-2213dab6a8ab4e2cbb9be1e77129e6f62022-12-22T01:08:09ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752019-03-01510090009910.18540/jcecvl5iss1pp0090-00991072AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICALMohammed Abubakar Rufai0Uzairu Adamu1Shallangwa Gideon2Sani Uba3Ahmadu Bello University, Zaria, Kaduna state.Ahmadu Bello University, Zaria, Kaduna state.Ahmadu Bello University, Zaria, Kaduna state.Ahmadu Bello University, Zaria, Kaduna state.An Insilco study was carried out on the thermochemistry, mechanism and kinetics of the Hydrogen abstraction reaction of 1,1-difluoro-2-methoxypropane (CH3CH(OCH3)CHF2) with the Bromine monoxide radical (BrO) using the Density Functional Theory (DFT) based M06-2X/6-311++G** method. The energy values were immediately improved via optimization at DFT/M06-2X/6-311++G(2df,2p) level (single-point calculations) of the reacting species involved. The Monte Carlo search on the investigating hydrofluoroether (HFE) showed nine conformers with the lowest global minimum conformer being predicted and considered for this work. The results of this study showed that the atmospheric oxidation reaction of CH3CH(OCH3)CHF2 with the BrO radical proceeded in four (4) plausible reaction routes. The  total experimental rate of 4.34*10-06 cm-3 molecule-1 sec-1 for HFE + BrO reaction was estimated with atmospheric lifetime (ALT)/global warming potential (GWP) of 1.80 years and 165.30 respectively. The 3D potential energy surfaces (PES) for the reaction was however constructed at absolute temperature of 298.15 K.https://periodicos.ufv.br/ojs/jcec/article/view/25411,1-difluoro-2-methoxypropaneDFTCFCsBrO
spellingShingle Mohammed Abubakar Rufai
Uzairu Adamu
Shallangwa Gideon
Sani Uba
AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
The Journal of Engineering and Exact Sciences
1,1-difluoro-2-methoxypropane
DFT
CFCs
BrO
title AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
title_full AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
title_fullStr AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
title_full_unstemmed AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
title_short AN INSILCO STUDY OF 1,1-DIFLUORO-2-METHOXYPROPANE REACTION MECHANISM WITH THE BROMINE MONOXIDE (BrO) RADICAL
title_sort insilco study of 1 1 difluoro 2 methoxypropane reaction mechanism with the bromine monoxide bro radical
topic 1,1-difluoro-2-methoxypropane
DFT
CFCs
BrO
url https://periodicos.ufv.br/ojs/jcec/article/view/2541
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