2

This question already has an answer here:

I found a bug in chemfig: If you use the second optional argument in \chemfig[][scale=0.5] the circle in the ring is not resized:

\documentclass[captions=tableabove,ngerman]{scrreprt}
\usepackage{chemfig}
\begin{document}
\chemfig[][scale=0.75]{**6(------)}
\chemfig[][scale=0.75]{**5(-----)}

\chemfig[][scale=1.25]{**6(------)} 
\chemfig[][scale=1.25]{**5(-----)}

\chemfig[][scale=1]{**6(------)} 
\chemfig[][scale=1]{**5(-----)} 
\end{document}

enter image description here

marked as duplicate by clemens, Kurt, diabonas, Paul Gaborit, Mico Oct 6 '17 at 23:10

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

3

According to the docu, the first argument is for the tikzpicture, the second only for nodes. So there will be cases where you need to scale both:

\documentclass[captions=tableabove,ngerman]{scrreprt}
\usepackage{chemfig}
\begin{document}
\chemfig[][scale=0.75]{**6(------)}

\chemfig[scale=0.75][]{**6(------)}

\chemfig[scale=0.75][scale=0.75]{**6(------)}

\end{document}

enter image description here

Not the answer you're looking for? Browse other questions tagged or ask your own question.