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酰胺

- tikz \usepackage chemfig \begin document \chemfig - 4.7 R = 2 O - 2,0.5,,,,transparent % 上边界撑起 - 7.3 N - 6,0.3,,,,transparent H - 0.7 R \end document - tikz \usepackage chemfig

作者：admin

2026-08-16

\usepackage{chemfig}
\begin{document}
\chemfig{
(-[4.7]R)(=[2]O
-[2,0.5,,,,transparent]% 上边界撑起
)-[7.3]N(-[6,0.3,,,,transparent]H)-[0.7]R
}
\end{document}

\usepackage{chemfig}
\begin{document}
\chemfig{
(-[4.7,,,1]R)(-[2,,1]O(-[0,0.25,,,transparent]^{-})
(-[2,0.5,,,,transparent])% 上边界撑起
)=[7.3]N(-[6,0.3,,,,transparent]H)(-[2,0.3,,,,transparent]+)-[0.7]R
}
\end{document}