I want to use chemfig arrows between two tikz nodes.

I looked up chemfig manual. It has examples where chemfig scheme is drawn in tikz node, but no example of how to use chemfig arrows as tikz arrow. I could use it to draw an arrow between node (a) and (b):

 \draw[] (a) -- node[] {\schemestart \arrow{<->} \schemestop } (b); 

If I was less lazy, I would write a macro. I was wondering if chemfig already have such macros (or pgfkeys based solutions) such that its arrows can be used at tikz arrows as if they were tikz arrows? e.g.

 \draw[-some chemfig arrow-,draw] (a) -- (b);

chemfig's arrow tips are TikZ arrow tips called CF:



  \draw[-CF] (0,0) -- ++(1,0);

  A \arrow B


enter image description here

  • How to use \arrow{<=>} ? I tried putting the \draw[\arrow{<=>}] etc. but I ran into undefined control sequence. – Dilawar Jul 13 '17 at 12:54
  • 1
    @Dilawar I don't think you can… \draw[\schemestart{}\arrow{<=>}\schemestop] might work but might need adjusting with the compoundsep parameter. – clemens Jul 13 '17 at 13:49

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