u/nick_swift

How do i vertically adjust the arrow position in order to go from A to B?

\documentclass{article}
\usepackage{mhchem}
\usepackage{chemfig}
\setchemfig{atom sep = 2em}
\usepackage{geometry}
\geometry{left=2cm, right=2cm, top=2cm, bottom=2cm}


\begin{document}

\section{}

\schemestart
    2 \chemfig{CH_3-CH(-[6]Br)-CH_2-CH_3} \+ \ce{2Na}
    \arrow{->}
    \chemfig{CH_3-CH_2-CH(-[6]CH_3)-CH(-[6]CH_3)-CH_2-CH_3}
    \+ \ce{2NaBr}
\schemestop

\section{}

\schemestart
    \chemfig{CH_3-CH_2-CH_3} \+ \ce{Br2}
    \arrow{->[h$\nu$]}
    \chemfig{@{c1}CH_3-CH(-[6]Br)-CH_3} \+ \ce{HBr}
\schemestop

\end{document}