Sounds like a resolver issue. This is tricky, but not ambiguous.
C\2=C/C#C
indicates a trans connection ("down" to the other atom at connection 2; "up"
to the triple bond)
More explicitly you would have:
o...@h]1[c@H]/2[C@@]34N[C@@H]5C/C=C\C#C.C4CC1.C5CC3.C\2=C/C#C
but that first "/2" can be just "2" without any ambiguity.
Bob
On Mon, Nov 22, 2010 at 5:14 PM, Otis Rothenberger <osrot...@chemagic.com>wrote:
> Bob,
>
> I copied Markus with this problem because I don't know if it's a
> Resolver of Jmol issue. I think it's a Resolver issue. While I think the
> backslash issue (Jmol to Resolver) is mostly under control, a general
> slash issue seems to remain. By way of example:
>
> o...@h]1[c@H]2[C@@]34N[C@@H]5C/C=C\C#C.C4CC1.C5CC3.C\2=C/C#C
>
> In the above example, Resolver gets the .....C/C=C\..... right, but it
> sees the ....C\2=C/.... (cis, I think) as ambiguous. This appears to be
> a general problem when either type of slash precedes a number.
>
> As I type this, I am having a sense of deja vu. This might be an issue
> that's already on the table.
>
> Otis
>
> --
> Otis Rothenberger
> chemagic.com
>
>
>
>
>
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--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
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If nature does not answer first what we want,
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-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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