Help in Z matrix


Click here for full thread
Clicked A Few Times
building a zmatrix
Hello,

you can use GABEDIT to build a zmatrix from the output file.out or fille.xyz
1) click on the icon "draw geometry" ---> right click on READ - file.xyz
                                                                                              -NWCHEM output :file.out
2) click on "EDIT"-->OPEN GZMATRIXEDITOR---> ALL-->TO ZMATRIX
3) click on icon NWCHEM: you will have an input in zmatrix-format

Alternatively, use dummy-atoms, like X, to make things more easy.
For example planar NH3:


geometry
 zmatrix units angstrom  
X
N 1 1.0
H 2 r 1 w
H 2 r 1 w 3 d
H 2 r 1 w 4 d
variables
r 1.2
w 90.0
d 60
end
end


Using dummy-atoms helps greatly to recognise dihedral angles and the zmatrix is much easier to set up!


Greetings
Alfred