4

I'm trying to draw this molecule using the chemfig package but honestly don't know where or how to start. Please help. Thank you.

enter image description here

\documentclass{article}
\usepackage{chemfig}
\setcrambond{3pt}{}{}
\begin{document}

\chemfig{
  ?[a]>[:18,.8]-[:108,.8]-[4]
    (
      -[:-40,.65,,,draw=none]@{r1}-[2,,,,dotted]
      Fe
      -[2,,,,dotted]@{r2}-[:-130,.7,,,draw=none]
      ?[b]-[,,,,line width=3.5pt]>[:72,.8]-[:162,.8]-[:-162,.8]?[b,4]
    )
  -[:-108,.8]?[a,4]}
\chemmove{
  \draw (r1) ellipse (15pt and 8pt);
  \draw (r2) ellipse (15pt and 8pt);
}
\end{document}
  • 3
    Welcome to TeX.SE, please show us what you have tried so-far. This is not a just-do-it-for-me site. – Raaja Apr 24 at 20:31
  • 3
    Since you are asking for a starting point, here are two; the chemfig manual and a google picture search for site:tex.stackexchange.com chemfig compounds. – user121799 Apr 24 at 20:33
  • 3
    The example on p. 68 of the chemfig user guide seems to contain all necessary components – user186389 Apr 24 at 20:52
  • Is that better? @Raaja – Dave124 Apr 25 at 6:11
  • You already got my +1 :) – Raaja Apr 25 at 7:17
3

Try this:

\documentclass{article}
\usepackage{chemfig}
\begin{document}
\setchemfig{cram width=4pt}
\chemfig{
    ?[start]<[::-30]>[::+60]?[start]% Bottom ring
    -[::120,,,,draw=none]% Invisible bond
    M(-[:-90,0.7,,,dashed,preaction={draw=white,line width=3pt}])% Dashed bond with white border
    (-[:90,0.7,,,dashed])% Invisible bond
    -[::0,,,,draw=none]?[end]<:[:+30]>:[::-60]?[end]% Upper ring
}
\end{document}

The output:

Output

  • Thank you! That worked! – Dave124 Apr 25 at 18:54

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