Absolute rate coefficients for methyl radical reactions by laser photolysis/time-resolved infrared chemiluminescence: methyl-d3 + HX .fwdarw. methane-d3 + X (X = Br, I)

1986 ◽  
Vol 90 (5) ◽  
pp. 936-941 ◽  
Author(s):  
D. J. Donaldson ◽  
Stephen R. Leone
Keyword(s):  
Laser Photolysis ◽  
Rate Coefficients ◽  
Radical Reactions ◽  
Absolute Rate ◽  
Methyl Radical ◽  
Time Resolved

Time-resolved ion cyclotron resonance

1978 ◽  
Vol 364 (1718) ◽  
pp. 367-381 ◽  
Keyword(s):  
Cyclotron Resonance ◽  
Low Energy ◽  
Interstellar Space ◽  
Ion Cyclotron Resonance ◽  
Absolute Rate ◽  
Time Resolved ◽  
Ion Molecule Reactions ◽  
Quadrupole Trap ◽  
Ion Cyclotron ◽  
Improved Technique

Ion cyclotron resonance (i. c. r.) is a technique for the study of ion-molecule reactions in the collisional range from thermal to several electron volts. The study of these reactions at low energy has been given impetus by the discovery of their importance in the ionosphere and in interstellar space. This communication identifies some possible weaknesses inherent in current i. c. r. work and suggests an improved technique with which it is possible to determine absolute rate constants more reliably. As an illustration of the technique a measurement of the rate constant for the reaction CH 4 + + CH 4 → k CH 5 + + CH 3 is presented. This value is k = 1.21 ± 0.09 × 10 -15 m 3 s -1 . A new i. c. r. cell design is discussed with which it is hoped to provide further improvement in reliability by the production of a homogeneous radiofrequency field within a true quadrupole trap.

Comparative measurements of annihilation rate coefficients of fluorine radicals in a r.f. SF6 plasma by different time-resolved actinometry techniques

1999 ◽  
Vol 116-119 ◽  
pp. 1123-1126
Author(s):  
V. Shogun ◽  
A. Tyablikov ◽  
V. Pashkov ◽  
W. Scharff ◽  
T. Wallendorf ◽  
...  
Keyword(s):  
Rate Coefficients ◽  
Annihilation Rate ◽  
Time Resolved
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