Kinetics Database Logo     Home
©NIST, 2022
Accessibility information
Kinetics Database Resources

Simple Reaction Search

Search Reaction Database

Search Bibliographic Database

Set Unit Preferences

Contact Us to Submit an Article

Citation

Help


Other Databases

NIST Standard Reference Data Program

NIST Chemistry Web Book

NDRL-NIST Solution Kinetics Database

NIST Computational Chemistry Comparison and Benchmark Database

The NIST Reference on Constants, Units, and Uncertainty

More...


Administrative Links

DOC home page

NIST home page

MML home page

Chemical Sciences Division

Applied Chemicals and Materials Division

Author(s):   Bernard, F.; Papanastasiou, D.K.; Papadimitriou, V.C.; Burkholder, J.B.
Title:   Temperature Dependent Rate Coefficients for the Gas-Phase Reaction of the OH Radical with Linear (L-2, L-3) and Cyclic (D-3, D-4) Permethylsiloxanes
Journal:   J. Phys. Chem. A
Volume:   122
Page(s):   4252 - 4264
Year:   2018
Reference type:   Journal article
Squib:   2018BER/PAP4252-4264

Reaction:   Hexamethylcyclotrisiloxane + ·OH → Products
Reaction order:   2
Temperature:   240 - 370 K
Pressure:  0.13 - 0.27 bar
Rate expression:   1.29x10-11 [±1.9x10-12 cm3/molecule s] e-6677 [±358 J/mole]/RT
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   Rate constant is pressure independent
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Flash photolysis (laser or conventional)
Time resolution:   In real time
Analytical technique:   Laser induced fluorescence
Comments:   The reported uncertainties are 2σ.

View full bibliographic record.


Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
240 4.54E-13
250 5.20E-13
275 6.96E-13
300 8.87E-13
325 1.09E-12
350 1.30E-12
370 1.47E-12