The structure of <a href="https://en.wikipedia.org/wiki/9,10-Bis(phenylethynyl)anthracene.svg" class="extiw" title="en:9,10-Bis(phenylethynyl)anthracene.svg">9,10-Bis(phenylethynyl)anthracene.svg</a>, a <a href="https://en.wikipedia.org/wiki/polycyclic_aromatic_hydrocarbon" class="extiw" title="en:polycyclic aromatic hydrocarbon">polycyclic aromatic hydrocarbon</a>, or PAH.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
2008-04-21
Own work, Inkscape