<a href="https://en.wikipedia.org/wiki/Bis(pinacolato)diboron" class="extiw" title="w:Bis(pinacolato)diboron">Bis(pinacolato)diboron</a>
<a href="//commons.wikimedia.org/wiki/User:Joey-das-WBF" title="User:Joey-das-WBF">Johannes Rössel</a>
<span class="int-own-work" lang="en">Own work</span>