Structure of <i>all</i>-<i>trans</i>-<a href="https://en.wikipedia.org/wiki/Polyacetylene" class="extiw" title="en:Polyacetylene">Polyacetylene</a>
<a href="//commons.wikimedia.org/wiki/User:Sponk" title="User:Sponk">Sponk</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Sponk" title="User talk:Sponk"><span class="signature-talk">talk</span></a>)
2010-07-26
<span class="int-own-work" lang="en">Own work</span>