What question did this study set out to answer?

Measure precise hydroxyl (OH) radical formation yields from gas-phase reactions of ozone with terminal alkenes and analyze how alkene structure governs the reaction mechanism.

September 23, 1999The Journal of Physical Chemistry A

OH Radical Formation from the Gas-Phase Reaction of Ozone with Terminal Alkenes and the Relationship between Structure and Mechanism

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Authors

SPSuzanne E. Paulson MCMyeong Y. Chung AHAlam S. Hasson

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Overview

Laboratory study reveals structure-dependent OH radical yields from ozone-alkene gas reactions, indicating that alkyl substitution heavily influences atmospheric oxidant production.

Key Points

Measure precise hydroxyl (OH) radical formation yields from gas-phase reactions of ozone with terminal alkenes and analyze how alkene structure governs the reaction mechanism.
Developed and implemented a small-ratio relative rate experimental technique to measure OH radical yields with high precision.
Utilized trace amounts of fast-reacting aromatic hydrocarbons and aliphatic ethers as chemical tracers to track OH radical production.
OH radical yields for unbranched terminal alkenes decreased systematically with increasing carbon chain length: 0.29 ± 0.05 for 1-butene, 0.24 ± 0.05 for 1-pentene, 0.18 ± 0.04 for 1-hexene, and 0.10 ± 0.03 for 1-octene.
Methyl-substituted terminal alkenes exhibited markedly higher OH yields, reaching 0.72 ± 0.12 for methyl propene and 0.67 ± 0.12 for 2-methyl-1-butene.

Cite This Study

Paulson et al. (1999) studied this question.

synapsesocial.com/papers/6a8c4ee7ef2dbea76bab8ec4 https://doi.org/10.1021/jp991995e

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September 23, 1999The Journal of Physical Chemistry A

OH Radical Formation from the Gas-Phase Reaction of Ozone with Terminal Alkenes and the Relationship between Structure and Mechanism

View Full Paper

Ask AI

Bookmark

Authors

SPSuzanne E. Paulson MCMyeong Y. Chung AHAlam S. Hasson

Discussion

Member takes

Overview

Laboratory study reveals structure-dependent OH radical yields from ozone-alkene gas reactions, indicating that alkyl substitution heavily influences atmospheric oxidant production.

Key Points

Measure precise hydroxyl (OH) radical formation yields from gas-phase reactions of ozone with terminal alkenes and analyze how alkene structure governs the reaction mechanism.
Developed and implemented a small-ratio relative rate experimental technique to measure OH radical yields with high precision.
Utilized trace amounts of fast-reacting aromatic hydrocarbons and aliphatic ethers as chemical tracers to track OH radical production.
OH radical yields for unbranched terminal alkenes decreased systematically with increasing carbon chain length: 0.29 ± 0.05 for 1-butene, 0.24 ± 0.05 for 1-pentene, 0.18 ± 0.04 for 1-hexene, and 0.10 ± 0.03 for 1-octene.
Methyl-substituted terminal alkenes exhibited markedly higher OH yields, reaching 0.72 ± 0.12 for methyl propene and 0.67 ± 0.12 for 2-methyl-1-butene.

Cite This Study

Paulson et al. (1999) studied this question.

synapsesocial.com/papers/6a8c4ee7ef2dbea76bab8ec4 https://doi.org/10.1021/jp991995e

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