im a LaTeX beginner and i keep running into this one issue compiling a .tex file.
the error is as following:
*geometry* driver: auto-detecting
*geometry* detected driver: pdftex
! Missing $ inserted.
<inserted text>
$
l.31 quad rightarrow
quad
?
the code around line 31 is:
begin{center}
chemfig{*6(-F-NO_2-NC)}
quad +
quad 3Sn quad + quad 6HCl
quad rightarrow quad
chemfig{*6(-F-NH_2-NC)}
quad + quad 3SnCl_2 quad + quad 2H_2O
end{center}
Any help appreciated.
New contributor
Martin Babka is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
0
Macros like _ or rightarrow are math commands. They need to be used in math mode, e.g. $rightarrow$.
However you could make your life easier by using one of the packages to typeset chemistry formulas:
documentclass{article}
usepackage{chemfig}
usepackage[version=4]{mhchem}
begin{document}
begin{center}
ce{
chemfig{*6(-F-NO_2-NC)}
+
3Sn + 6HCl
->
chemfig{*6(-F-NH_2-NC)}
+ 3SnCl2 + 2H2O
}
end{center}
end{document}