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I came across an error when trying to incorporate a simple chemfig diagram in a document. Here is a minimal working example (the code for the diagram was generated using mol2chemfig):

\documentclass{article}
\usepackage{chemfig}

\begin{document}
    \chemfig{
              O% 2
       =[:330]\mcfbelow{C}{H}% 1
    -[:30,,,1]OH% 3
}
\end{document}

The error is 'Undefined control sequence: \mcfbelow'.

This compiles, producing the following diagram, which is not what I want.

enter image description here

What is intended is this, with the hydrogen directly below the carbon and the OH bonded directly to the carbon:

enter image description here

Any help would be appreciated.

le_wofl
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    install the mol2chemfig package from CTAN and add \usepackage{mol2chemfig} to the preamble. – Ross Jun 24 '20 at 12:01
  • I am getting Command \setbondstyle undefined. error so the above comment is not working. The same error has been reported previously: [https://tex.stackexchange.com/a/502610/]. I suggest reporting to the mol2chemfig author. There has been a series of upgrades to chemfig over the past 12 months so they may not be playing nicely together. – Ross Jun 24 '20 at 12:52
  • @Ross Thanks very much, that works. – le_wofl Jun 24 '20 at 23:31

0 Answers0