I am trying to illustrate the hydrogen bonding between two nucleotides. However, chemfig is positioning one below the other. How can I place them adjacent horizontally?
\documentclass[11pt,letterpaper]{article}
\usepackage{chemfig}
\begin{document}
\chemfig{N*6([:270](-sugar)-=(-)-(=O@{d})-NH@{b}-(=O)-)}{Thymine}
\chemfig[shift={(3,2)}]{[:90]N*6(-*5(-N(-sugar)-=N-)=-(-NH_2@{a})=N@{c}-=)}{Adenine}
\chemmove{ \draw[,,,,,dash pattern=on 2pt off 2pt] (a)--(b); \draw[,,,,,dash pattern=on 2pt off 2pt] (c)--(d); }
\end{document}