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Drawing molecules

In the previous recipe, we already encountered formulae for molecules. Now let's see how to draw them. This means drawing a group of atoms and connecting them by lines of various kinds.

How to do it...

This rather complex seeming task becomes manageable using the chemfig package. It provides a compact syntax for drawing molecules. Let's draw some:

\documentclass{article}
2. Load the chemfig package:
\usepackage{chemfig}
3. Let's write molecules in a table. For this, we stretch the rows a bit and start a tabular environment with a right-aligned column and a left-aligned one.
\renewcommand{\arraystretch}{1.5}
\begin{tabular}{rl}
4. For molecules, use the \chemfig command. Write atoms as letters and a single bond using ...