Kinetics Database Logo

Kinetics Database Resources

Simple Reaction Search

Search Reaction Database

Search Bibliographic Database

Set Unit Preferences


Rate Our Products and Services


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


Administrative Links

NIST home page

MML home page

Chemical Sciences Division

  NIST Logo Home
©NIST, 2013
Accessibility information
Author(s):   Opansky, B.J.; Leone, S.R.
Title:   Low-temperature rate coefficients of C2H with CH4 and CD4 from 154 to 359 K
Journal:   J. Phys. Chem.
Volume:   100
Page(s):   4888 - 4892
Year:   1996
Reference type:   Journal article
Squib:   1996OPA/LEO4888-4892

Reaction:   CH4 + ·C2HC2H2 + ·CH3
Reaction order:   2
Temperature:   154 - 359 K
Pressure:  1.60E-2 - 9.87E-2 bar
Rate expression:   1.2x10-11 [±9.63x10-13 cm3/molecule s] e-4082 [±81.65 J/mole]/RT
Bath gas:   He
Category:  Experiment
Data type:   Absolute value measured directly
Excitation technique:   Flash photolysis (laser or conventional)
Time resolution:   In real time
Analytical technique:   IR absorption

View full bibliographic record.

Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
154 4.95E-13
175 7.26E-13
200 1.03E-12
225 1.35E-12
250 1.68E-12
275 2.01E-12
300 2.34E-12
325 2.65E-12
350 2.95E-12
359 3.06E-12