 |
Home ©NIST, 2023 Accessibility information |
Contact Us to Submit an Article
Other Databases
NIST Standard Reference Data Program
NDRL-NIST Solution Kinetics Database
NIST Computational Chemistry Comparison and Benchmark Database
The NIST Reference on Constants, Units, and Uncertainty
Administrative Links
Title: Dissociation channels of the 1-buten-2-yl radical and its photolytic precursor 2-bromo-1-butene
Journal: J. Phys. Chem. A
Volume: 109
Page(s): 4038 - 4048
Year: 2005
Reference type: Journal article
Squib: 2005MIL/KRI4038-4048
Reaction:
CH2=C(·)CH2CH3 → 1,2-butadiene + H·
Reaction order:
1
Rate expression:
no rate data available
Category: Experiment
Data type:
Data too complex to abstract
Experimental procedure:
Molecular beam
Excitation technique:
Flash photolysis (laser or conventional)
Time resolution:
In real time
Analytical technique:
Mass spectrometry
Comments:
The 1-buten-2-yl radical was produced by 193-nm photolysis of 2-bromo-1-butene under collisionless conditions. The energetic onset of each dissociation channel was determed: radicals with at least 30.7±2 kcal/mol internal energy dissociated by C-C fission to form allene and methyl radical; those with 36.7±4 kcal/mol underwent C-H fission to form H + 1-butene and H + 1,2-butadiene.
View full bibliographic record.