Ewen, I think Angel covers it pretty well. Thank you, Angel.
The file formats from which Jmol currently reads partial charge 
information include:

Chem3D XML (http://www.cambridgesoft.com/)
CML (http://www.xml-cml.org/)
CSF (Sygress, formerly CAChe, by Fujitsu, 
http://www.cachesoftware.com/cache/)
Gaussian output files (http://www.gaussian.com/)
Ghemical molecular mechanics files (http://www.uku.fi/~thassine/ghemical/)
HIN (Hyperchem native format, http://www.hyper.com)
MOL2 (Trypos, 
http://www.tripos.com/index.php?family=modules,SimplePage,,,&page=sup_mol2&s=0)
MOPAC7 (http://sourceforge.net/projects/mopac7/)
NWChem (http://www.emsl.pnl.gov/docs/nwchem/nwchem.html)
PQR (http://pdb2pqr.sourceforge.net/, upcoming 11.1.30)
QChem (http://www.q-chem.com/)
Spartan Smol (Wavefunction, http://www.wavefun.com)

If we are not reading partial charge information that is present in a 
file type you are using, just ask for it.

Bob



Angel Herraez wrote:

>Hello Ewen 
>
>  
>
>>I use Chime MEP surfaces for teaching basic ideas about molecular
>>polarity, but it's not a lightly-taken decision.
>>
>>I've converted my old Chime resources into Jmol ones now, except the
>>ones using MEP surfaces (and the dreaded Sculpt mode). Wanting to
>>push on with my Chime --> Jmol conversions, I have a newbie question for
>>Bob: What software would you use to calculate the MEP surface properly
>>from a mol (or other) file?
>>    
>>
>
>We've been recently trying to do this same thing. We found some solution in 
>freeware 
>Accelrys DS Visualizer, which can open the file (mol, pdb, whatever), 
>calculate and show 
>the MEP surface and export into MOL2 format, which keeps the calculated 
>charges. 
>However, sometimes the MEP coloring is not done by DSVis (don't know if it has 
>to do 
>with the original file or the program version). Also, it seems you need the 
>latest 1.7 
>version to be able to export to MOL2 (1.5 won't offer this format).
>After that, Jmol will open the MOL2 and display the MEP either from the pop-up 
>menu or 
>from the equivalent isosurface command, something like 
>   isosurface molecular map mep
>
> I am still exploring other possibilities. For macromolecules, there is the 
> pdb2pqr + APBS 
>route --still I'm not getting successful results--.
>
>  
>
>>PS Sorry if I missed it Bob, but did anything happen with lipophilic 
>>potential colouring of surfaces?
>>    
>>
>
>I think this is even more misterious than MEP; as far as I know, nobody says 
>how it's 
>calculated and, certainly, Jmol cannot do it now..
>
>
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