Skip to Content
Merck
  • OH-initiated photooxidations of 1-pentene and 2-methyl-2-propen-1-ol: mechanism and yields of the primary carbonyl products.

OH-initiated photooxidations of 1-pentene and 2-methyl-2-propen-1-ol: mechanism and yields of the primary carbonyl products.

Chemphyschem : a European journal of chemical physics and physical chemistry (2014-09-05)
Silvina A Peirone, Pablo M Cometto, Silvia I Lane
ABSTRACT

The products of the gas-phase reactions of OH radicals with 1-pentene and 2-methyl-2-propen-1-ol (221MPO) at T=298±2 K and atmospheric pressure were investigated by using a 4500 L atmospheric simulation chamber that was built especially for this work. The molar yield of butyraldehyde was 0.74±0.12 mol for the reaction of 1-pentene. This work provides the first product molar yield determination of formaldehyde (0.82±0.12 mol), 1-hydroxypropan-2-one (0.84±0.13 mol), and methacrolein (0.078±0.012 mol) from the reaction of 221MPO with OH radicals. The mechanism of this reaction is discussed in relation to the experimental results. Additionally, taking into consideration the complex mechanism, the rate coefficients of the reactions of OH with formaldehyde, 1-hydroxypropan-2-one, and methacrolein were derived at atmospheric pressure and T=298±2 K.; the obtained values were (8.9±1.6)×10(-12) , (2.4±1.4)×10(-12) , and (22.9±2.3)×10(-12) cm(3) molecule(-1) s(-1) , respectively.

MATERIALS
Product Number
Brand
Product Description

Supelco
Hydrogen chloride – 2-propanol solution, ~1.25 M HCl (T), for GC derivatization, LiChropur
Supelco
Hydrogen chloride – ethanol solution, ~1.25 M HCl, for GC derivatization, LiChropur
Supelco
Hydrogen chloride – methanol solution, ~1.25 m HCl (T), for GC derivatization, LiChropur
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 24 ga, for use with manual holder
Sigma-Aldrich
Formaldehyde-12C solution, 20% in H2O, 99.9 atom % 12C
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 100 μm(PDMS, for use with autosampler, needle size 24 ga
Supelco
SPME fiber assembly polyacrylate (PA), df 85 μm(PA, for use with autosampler, needle size 24 ga
Supelco
SPME Portable Field Sampler, coating CAR/PDMS
Supelco
SPME fiber assembly Carboxen/Polydimethylsiloxane (CAR/PDMS), df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga
Supelco
SPME fiber assembly Carboxen/Polydimethylsiloxane (CAR/PDMS), df 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler
Supelco
SPME Sampling Stand, for use with 4 mL vials
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 30 μm(PDMS, needle size 24 ga, for use with manual holder
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 30 μm(PDMS, needle size 24 ga, for use with autosampler
Supelco
SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm(PDMS/DVB, for use with autosampler, needle size 23 ga
Supelco
SPME Portable Field Sampler, coating PDMS
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 7 μm(PDMS, needle size 24 ga, for use with manual holder
Supelco
SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm(PDMS/DVB, needle size 24 ga, StableFlex, for use with autosampler
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 7 μm(PDMS, needle size 24 ga, for use with autosampler
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 24 ga, StableFlex, for use with autosampler
Supelco
SPME fiber assembly polyacrylate (PA), df 85 μm(PA, for use with manual holder, needle size 24 ga
Supelco
SPME fiber assembly Polydimethylsiloxane (PDMS), df 7 μm(PDMS, needle size 23 ga, for use with autosampler
Sigma-Aldrich
Formaldehyde solution, meets analytical specification of USP, ≥34.5 wt. %
Sigma-Aldrich
Formaldehyde solution, for molecular biology, 36.5-38% in H2O
Sigma-Aldrich
Butyraldehyde, ≥96.0%
Sigma-Aldrich
Butyraldehyde, purified by redistillation, ≥99.5%
Sigma-Aldrich
Butyraldehyde, natural, FG
Sigma-Aldrich
Formaldehyde solution, for molecular biology, BioReagent, ≥36.0% in H2O (T)
Sigma-Aldrich
Hydroxyacetone, contains ≤500 ppm sodium carbonate as stabilizer, technical grade, 90%
Sigma-Aldrich
Hydrochloric acid solution, 1.0 N, BioReagent, suitable for cell culture
Supelco
Formaldehyde solution, stabilized with methanol, ~37 wt. % in H2O, certified reference material