% reduce font size and use sans-serif for atoms

% reduce font size and use sans-serif for atoms
\renewcommand{\printatom}[1]{%
\fontsize{8pt}{10pt}\selectfont{\ensuremath{\mathsf{#1}}}}

% reduce bond dimensions to match smaller fonts
\setchemfig{
cram rectangle=false,
cram width=2.5pt,
cram dash width=0.4pt,
cram dash sep=1pt,
atom sep=16pt,
bond offset=1pt,
double bond sep=2pt
}