Chemfig

Last updated
Chemfig
Developer(s) Christian Tellechea
Written in TeX
Operating system Cross-platform
Platform LaTeX
Type Chemical structure drawing
License LaTeX Project Public License
Website www.ctan.org/pkg/chemfig

Chemfig is a LaTeX package used for creating graphical representations of chemical structures, molecules, reaction schemes, and structural formulas. It provides a simple and flexible syntax to define atoms, bonds, angles, rings. [1] It allows for the construction of both organic and inorganic molecules using LaTeX markup. [2] [3]

Contents

Features

Syntax

Package preamble:

\input chemfig.tex \usepackage{chemfig}

Chemfig uses a simple syntax based on TeX commands. For example:

\chemfig{H-C(-[2]H)(-[6]H)-C(=O)-OH}

Produces a structural formula for acetic acid and a structure would render as:

Acetic acid Essigsaure - Acetic acid.svg
Acetic acid

There are 9 different bond types:

Chemfig bonds.png 
\chemfig{A-B}\\\chemfig{A=B}\\\chemfig{A~B}\\\chemfig{A>B}\\\chemfig{A<B}\\\chemfig{A>:B}\\\chemfig{A<:B}\\\chemfig{A>{{!}}B}\\\chemfig{A<{{!}}B}\\
methane molecule Methane chemfig.png
methane molecule

Molecular angles of a methane molecule: 

\chemfig{C(-[:0]H)(-[:90]H)(-[:180]H)(-[:270]H)}

See also

References

  1. ↑ "Chemistry formulae". www.overleaf.com.
  2. ↑ "chemfig" (PDF). tug.ctan.org.
  3. ↑ Wright, Joseph (August 25, 2012). "Exploring ChemFig: Basics". Some TeX Developments.
  4. ↑ Brefo-Mensah, Eric K.; Palmer, Michael (October 2, 2012). "mol2chemfig, a tool for rendering chemical structures from molfile or SMILES format to LATE X code". Journal of Cheminformatics. 4 (1): 24. doi: 10.1186/1758-2946-4-24 . PMC   3551648 . PMID   23031664.
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