Hi Sam!

On Tue, Jun 16, 2009 at 9:55 AM, Sam Adams<se...@cam.ac.uk> wrote:
> #N means an electronegative element (O, N, F, Cl, Br).

OK, that I can replace then.

> q3 means has 3 ring bonds (is equivalent to daylight's x3, I think).

Can you elaborate? Does this means a superatoms like thing of three
ring bonds in a row? Or, a single atom which has three ring bonds
(bridgehead atom)?

Egon

-- 
Post-doc @ Uppsala University
http://chem-bla-ics.blogspot.com/

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