Assume that 1-butene is being oxidized during a photochemical smog episode. Formulate the sequence of reactions...
Assume that 1-butene is being oxidized during a photochemical smog episode. Formulate the sequence of reactions that leads to the formation of two aldehyde species and using all peroxide radicals to oxidize NO· to NO2·.
Homework Answers
formation of peroxide radical
H2O2 + O2 = 2HO2.
HO2. + NO = HO. + NO2
For the case of 1-Butene i.e. Alkene, HO . reacts through addition to either carbon atom of the double bond.
CH3CH2HC=CH2 + HO• → CH3CH2(HCOH)CH2 •
CH3CH2(HCOH)CH2 • + O2 → CH3CH2(HCOH)CH2O2 • , This is used to produce NO2
CH3(HCOH)CH2O2 • + NO → CH3(HCOH)CH2O• + NO2 .The net effect is to convert NO to NO2 and this produces more O3
CH3CH2CH=CH2 + O3 → CH3CH2CHOOOCH2 . This will fragment to produce two aldehyde species.
CH3CH2CHOOOCH2 → CH3CH2CHO + [• CH2OO• ] ≠
CH3CH2CHOOOCH2 → CH3CH2O + [CH3 • CHOO• ] ≠
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