[gmx-users] LJ potential definitions?
Anton Feenstra
feenstra at chem.vu.nl
Thu Jan 23 11:54:52 CET 2003
Anton Feenstra wrote:
> Hi All,
>
>
> I am trying to figure out some strange desagreement between LJ potential
> definitions.
I'll answer that one ;-)
First, my aplogies; the sigma and epsilon got lost in code tables...
The confusion stems from the relation between R* and sigma. R* is the
distance at potential *minimum*, and sigma at *zero* potential. The
relation is R* = sigma . 2^(1/6), which makes both formulae identical.
--
Groetjes,
Anton
________ ___________________________________________________________
| | Anton Feenstra |
| . | Dept. of Pharmacochemistry - Vrije Universiteit Amsterdam |
| |---- | De Boelelaan 1083 - 1081 HV Amsterdam - The Netherlands |
| |---- | Tel: +31 20 44 47608 - Fax: +31 20 44 47610 |
| ' __ | Feenstra at chem.vu.nl - http://www.chem.vu.nl/afdelingen/FAR|
| / \ |-----------------------------------------------------------|
| ( ) | Dept. of Biophysical Chemistry - University of Groningen |
| \__/ | Nijenborgh 4 - 9747 AG Groningen - The Netherlands |
| __ | Tel +31 50 363 4327 - Fax +31 50 363 4800 |
| / \ | K.A.Feenstra at chem.rug.nl - http://md.chem.rug.nl/~anton |
| ( ) |-----------------------------------------------------------|
| \__/ | "If You See Me Getting High, Knock Me Down" |
| | (Red Hot Chili Peppers) |
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