Ring of pure carbon takes on negative charge
![An image showing cyclo[18]carbon](https://d2cbg94ubxgsnp.cloudfront.net/Pictures/100x67/2/7/3/502273_indexuntitled1_212753.png)
Scientists use simulations to reveal the properties of the newest carbon allotrope
Computer modelling demonstrates that an exotic ring-shaped molecule is the smallest known electron acceptor made purely of carbon.