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

% reduce bond dimensions to match smaller fonts
\setcrambond{2.5pt}{0.4pt}{1.0pt} 
\setbondoffset{1pt}
\setdoublesep{2pt}             
\setatomsep{16pt}        

