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Title: Experimental and Theoretical Investigation of the Self-Reaction of Phenyl Radicals
Journal: J. Phys. Chem. A
Volume: 114
Page(s): 8240 - 8261
Year: 2010
Reference type: Journal article
Squib: 2010TRA/KLI8240-8261
Reaction:
Iodobenzene → Phenyl + I
Reaction order:
1
Temperature:
1246 - 1853
K
Pressure: 2.93E-2 - 0.93 bar
Rate expression:
no rate data available
Category: Experiment
Data type:
Absolute value measured directly
Pressure dependence:
Rate constant is pressure dependent
Experimental procedure:
Shock tube
Excitation technique:
Thermal
Time resolution:
In real time
Analytical technique:
Laser schlieren
Comments:
The dissociation of phenyl iodide was observed with both time-of-flight mass spectrometry, TOF-MS, and laser schlieren, LS, diagnostics coupled to a diaphragmless shock tube for temperatures ranging from 1276 to 1853 K. The LS experiments were performed at pressures between 22 and 122 Torr (Kr bath gas), and the TOF-MS experiments were performed at pressures in the range 500-700 Torr (Ne bath gas). These observations are sensitive to both the dissociation of phenyl iodide and to the subsequent self-reaction of the phenyl radicals. Temperature and pressure dependent rate constants of the dissociation of phenyl iodide obtained in individual experiments are given in a table.
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