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Accessibility information
Author(s):   Becerra, R.; Cannady, J.P.; Walsh, R.
Title:   Gas-phase reaction of silylene with acetone: direct rate studies, RRKM modeling, and ab initio studies of the potential energy surface
Journal:   J. Phys. Chem. A
Volume:   103
Page(s):   4457 - 4464
Year:   1999
Reference type:   Journal article
Squib:   1999BEC/CAN4457-4464

Reaction:   (CH3)2CO + SiH2 → Products
Reaction order:   2
Temperature:   295 - 602 K
Pressure:  4.00E-3 - 0.13 bar
Rate expression:   1.12x10-31 [cm3/molecule s] e4540 [±320 J/mole]/RT
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   Rate constant is high pressure limit
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Flash photolysis (laser or conventional)
Time resolution:   In real time
Analytical technique:   Vis-UV absorption
Comments:   logA=-10.17+0.04cm3/molecule

View full bibliographic record.


Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
295 7.15E-31
300 6.93E-31
325 6.02E-31
350 5.34E-31
375 4.81E-31
400 4.40E-31
425 4.06E-31
450 3.78E-31
475 3.54E-31
500 3.35E-31
525 3.18E-31
550 3.03E-31
575 2.90E-31
600 2.79E-31
602 2.78E-31