Thanks Bob and Rolf.
{*}.length to get the atomIndex of the appended atom makes the embarrassing
astatine trick go away. It also has some general utility.
Bob, putting the appended atom anywhere in the reach of other atoms seems to
always get it mired in a web of strange bonds after "minimize addHydrogens."
This happens even if I omit the delete hydrogens.
I'm also not sure where I want the appended atom in the general case - some
offfset from the clicked atom's coordinates? What I'm doing as an
alternative is placing the appended atom outside the reach of other atoms
and then letting minimize sort it out.
Rolf, I'll pursue the zoom suggestions that you made. The problem is that
zoom 100 seems to be redefined by the absurdly long bond that I'm forming.
Your suggestion may allow me to redefine it again after the minimization.
Writing this just gave me a thought. I wonder if the appended carbon atom is
still being viewed with astatine's radius. That might explain the web of
strange bonds.
Whatever the situation, I have some direction now. Thanks for the help.
Otis
--
Otis Rothenberger
http://chemagic.org
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