# Triple bond inside escaped chemfig formula within chemformula's reaction

I'm trying to include a molecular structure drawn with chemfig inside chemformula's reaction environment by escaping it with "…". It all worked fine until I stumbled upon a structure with a triple bond. According to chemfig's manual, ~ is used exclusively for drawing a triple bond, however, when placed inside reaction, ~ character is ignored or incorrectly interpreted (single and double bonds are displayed fine):

\documentclass{article}
\usepackage{chemmacros}
\chemsetup{modules={all}}
\usepackage{chemfig}

\begin{document}

\begin{reaction}
A + B + C + D -> "\chemfig{A-[::30]B=[::30]C~[:30]D}"
\end{reaction}

\end{document}


I'm using chemformula v4.15g, chemmacros v5.8f and chemfig v1.41 from the fully up-to-date (as of 2019-10-08) TeX Live 2019.

• From the chemformula manual (see section 8.1, page 21): "If you put something between " " or ' ' then the input will be treated as normal text, except that spaces are not allowed and have to be input with ~." This might be the reason for the output you get. – leandriis Oct 9 at 17:01
• This will work in version 4.15h (2019/10/13) of chemformula which I've just uploaded to CTAN – clemens Oct 13 at 17:13
• @clemens Thank you very much! – andselisk Oct 13 at 22:47

With chemformula v4.15h (2019/10/13) the MWE works:

\documentclass{article}

\usepackage{chemmacros}
\chemsetup{modules={reactions}}

\usepackage{chemfig}

\begin{document}

\begin{reaction}
A + B + C + D -> "\chemfig{A-[::30]B=[::30]C~[:30]D}"
\end{reaction}

\end{document}


\documentclass{article}
\usepackage{chemmacros}
\chemsetup{modules={all}}
\usepackage{chemfig}

\newcommand{\abcd}{\chemfig{A-[::30]B=[::30]C~[:30]D}}

\begin{document}

\begin{reaction}
A + B + C + D -> "\abcd"
\end{reaction}

\end{document}