Am Dienstag, 13. Mai 2008 12:35 schrieb Helge Hafting:
Thanks Helge and Joachim. I did indeed misspell it. Will have a look at the
chem packages, which you recommend.
Wolfgang
> Wolfgang Engelmann wrote:
> > I got stuck with the following:
> > According to Markus Kohm (Koma-script) one can declare a new command for
> > sub-scribing chemical formula such as
> > H_2
> > by declaring a new command \Molek
> > \newcommand*{\Molek}[2]{#1\texstsubscript{#2}}
> > which I did by putting this in the preamble of my Koma-book document.
> > In the text I write in an ERT-box
> > \Molek H{2}
> > but get 'Undefined control sequence' \Molek H{2}
> >
> > Same error, if I put only
> >
> > \Molek
> > in ERT
> >
> > and
> > H{2}
> > afterward.
> >
> > I use koma(book) for my LyX document.
> >
> > Can somebody give me some help?
> >
> > Wolfgang
>
> Replace the mis-spelled "\texstsubscript" with "\textsubscript". (No 's'
> in "text")
>
>
> You also need:
> \usepackage{fixltx2e}
>
> in the preamble, so that the \textsubscript command gets defined.
>
> Note that this way of using \Molek only works with single-letter atoms.
> For chlorine, you need something like \Molek{Cl}{2}
>
> You may want to have a look at the chemsym and bpchem packages,
> that lets you typeset all sorts of chemical formulae.
>
> Helge Hafting
