Thanks, Bob!

very enlightening.

> No. Jmol is not sentient, so it is not "smart" at all. :)
> More importantly, I'm not that smart. Tell me how to do it, and I will do it, though.

You should give yourself more credit!!

Am I smart enough to tell you how to do it? Doubt that.

thx again,
H

when I load it as: 'load mgcl2_3x3x3.cif {1 1 1}' I get 10 atoms displayed

On 9/19/2014 10:22 AM, Robert Hanson wrote:
Great questions!

On Fri, Sep 19, 2014 at 11:20 AM, Hans Horn <han...@2horns.com <mailto:han...@2horns.com>> wrote:

    Group,

    I've got a few questions about the display of crystals.

    First question:
    I have a cif file of a MgCl2 crystal 'mgcl2_3x3x3.cif' (see attached).

    when I load it as: 'load mgcl2_3x3x3.cif' I get the translational
    asymmetric unit (2 atoms) displayed

    when I load it as: 'load mgcl2_3x3x3.cif {1 1 1}' I get 10 atoms
    displayed

    when I load it as: ' load mgcl2_3x3x3.cif {1 1 1} PACKED' I get 24
    atoms displayed

    How do I switch between these display modes w/o having to reload
    the file?


The first is

display  symop=1   // no symmetry applied

You can't reliably do the second except from reloading. Frankly, that one tends to be not very useful, as symmetry operators throw atoms all over the place, not just inside the unit cell.


    Second question:
    Is jmol smart enough to work out (and display it) the structure of
    the smallest electrically neutral unit (I guess the "molecule" the
    crystal is built from), in this case MgCl2 ?


No. Jmol is not sentient, so it is not "smart" at all. :)
More importantly, I'm not that smart. Tell me how to do it, and I will do it, though.

Bob


    thx a bunch,
    H.


    
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--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
Chair, Department of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr


If nature does not answer first what we want,
it is better to take what answer we get.

-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900



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