Packing two unit cells of NaCl

Start Oscail and use to point to nacl.ins. The file should be in \ortex.

Click to start ORTEX and select defaults until the picture appears.



Click CELL / CELL on the menu to bring up the unit cell outline.
Click to go to atom mode and click to start lattice pack.



select Lattice Pack with Limits and click OK.

Set the X-Range limits to 0 and 2 on the pack range dialog



and click OK.



You now have two packed unit cells.
To examine the symmetry properties of any ion click to return to LINE MODE
and click to go to LINE MODE EDIT



Click any ion to select it and click to get the symmop on the status bar (in this case 65527).

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