[gmx-users] Molecular geometry depends on the orientarion
Anton Feenstra
feenstra at chem.vu.nl
Thu Jul 11 11:06:04 CEST 2002
"T. Zaraiskaya" wrote:
>
[..snip..]
> Note that the upper yellow molecule is the SAME molecule as
> the lower, it is just rotated 180 around x-axis.
> Why the results of minimization are different? I can make
> mdrun to predict the correct conformation of the lower part of the
> crystal by changing signs of the sugar impropers, but then of course the
> upper part does not look good. Is it a bug in the program or I am doing
> something silly?
Did you perhaps mirror the molecule in stead of rotate 180 degrees?
i.e. if you take z=-z, it might look 180 degrees rotated, but is
actually mirrored...
--
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 |
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| __ | Tel +31 50 363 4327 - Fax +31 50 363 4800 |
| / \ | K.A.Feenstra at chem.rug.nl - http://md.chem.rug.nl/~anton |
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