Effective collision cross sections for the viscomagnetic effect in a pure gas of linear molecules

1979 ◽  
Vol 71 (6) ◽  
pp. 2566-2574 ◽  
Author(s):  
W. K. Liu ◽  
F. R. McCourt ◽  
W. E. Köhler
Keyword(s):  
Cross Sections ◽  
Collision Cross Sections ◽  
Linear Molecules ◽  
Effective Collision

Quantum mechanical calculations of effective collision cross-sections for He-N2interaction

1991 ◽  
Vol 72 (6) ◽  
pp. 1347-1364 ◽  
Author(s):  
Frederick R.W. McCourt ◽  
Velisa Vesovic ◽  
William A. Wakeham ◽  
Alan S. Dickinson ◽  
Merih Mustafa
Keyword(s):  
Cross Sections ◽  
Quantum Mechanical ◽  
Quantum Mechanical Calculations ◽  
Collision Cross Sections ◽  
Effective Collision

Fluorescence decay of aromatic vapours. III. Single vibronic lifetimes and collision cross-sections for pyrimidine

1978 ◽  
Vol 31 (9) ◽  
pp. 1875 ◽  
Author(s):  
PR Nott ◽  
BK Selinger
Keyword(s):  
Small Molecule ◽  
Cross Sections ◽  
Pressure Dependence ◽  
Hard Sphere ◽  
Pressure Range ◽  
Fluorescence Decay ◽  
Decay Process ◽  
Intersystem Crossing ◽  
Collision Cross Sections ◽  
Effective Collision

In this paper the results of a lifetime study of the 1B1 state of pyrimidine vapour in the pressure range 1.2-60 Pa are presented. These lifetimes show an extraordinary pressure dependence, with collision cross-sections of 30-40 times hard sphere. It is shown that pyrimidine behaves as a small molecule. The collision-induced decay process is intersystem crossing and it is the most effective collision-induced process yet reported for the small-molecule limit.

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