Re: [Gchemutils-main] Help

[Jean Bréfort]

Hello,

for 1) this is because a nitrogen atom is trivalent. To add another
automatic hydrogen add a positive chargen, and then hide the charge
using the contextual menu for the atom.

For 2) seems you hit a bug. Anyway, I could an arrow after several
attempts, see attached file. I need to fix that (the issue seems to be
related to the target nickel atom, not the water molecule).

I don't know why you have three Ni atoms at the same position, is it
wanted? or an undo (or some other operation) bug?


Regards,
Jean


Le dimanche 22 mars 2015 à 21:17 +1030, Alex Jackson a écrit :
> Hello,
> 
> I recently downloaded GChemPaint and it seems good! I was having trouble
> with a couple of things. I'm drawing this nickel complex (attached) and
> I can't figure out how to:
> 
> 1) Make the NH on the ligands into NH2. I can see why it's NH, because
> the program thinks the N-C and N-Ni bond means there's only one more N-H
> bond available, but actually there are two N-H bonds on this ligand.
> 
> 2) I would like to use a curved arrow to represent electron pair
> movement from the water molecule on the right toward the nickel centre.
> When I click on the curved arrow tool though, it won't let me put an
> arrow from the O, only from the NHs (which I don't want).
> 
> I am using version 0.14.2 and Fedora 17.
> 
> Thank you,
> 
> Alex
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hydro1.gchempaint
Description: application/gchempaint