Hi Walter,

Have you tried  "position from 1 to 68" ?.  That's exactly what the manual
example quotes.
Bye,

Roberto


Walter Cañón wrote:
Dear Siesta Users, i had try to perform a geometry optimization of some atoms only, using geometry constrains in Siesta3 I havd try diferent set of parameters to do it, in the GeometryConstraints section with position -1 to -68 and 1 to 68, but always the geometry optimization is perform to all the atoms.( The atoms i want to fix are from 1 to 68)
Can anyone help me with this, PLEASE!!!
This is the input file (*.fdf)
Thanks in Advance
Walter

Here is the file:

...

%block GeometryConstraints
position 1 to 68
%endblock GeometryConstraints



--
Walter Alberto Cañón Mancisidor
Químico, Licenciado en Química
Candidato a Doctor en Química
Laboratorio de Magnetismo Molecular
Facultad de Ciencias Químicas y Farmacéutica
Universidad de Chile
Tel: 56 (2) 978-2987
[email protected] <mailto:[email protected]>




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