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Conical Intersection (Read 1810 times)
Gerrit-Jan Linker
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Conical Intersection
14.11.10 at 12:14:43
 
Conical Intersection
 
A conical intersection of two potential energy surfaces is the set of molecular geometry points where the two potential energy surfaces (PESs) intersect; when they are degenerate. A condition is that both PESs are of the same spatial and spin symmetry.
 
If two PESs are plotted as functions of 2 coordinate, they form a cone centered at the degeneracy point. Hence the name conical intersection.
 
Synonyms for conical intersection:
molecular funnel
diabolic point
 
Other related terms:
Seam = the intersection space = geometry points that are degenerate ; have equal energy
Branching space = the dimensions that lift the energy degeneracy of the system
 
See also:
PES: Potential energy surface
http://www.oraxcel.com/cgi-bin/yabb2/YaBB.pl?num=1216671925
 
Source:
http://en.wikipedia.org/wiki/Conical_intersection
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« Last Edit: 14.11.10 at 12:21:04 by Gerrit-Jan Linker »  

Gerrit-Jan Linker
Linker IT Software
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