Molecular necklace with record 24 positive charges made
![Structural Characterization of r[5]C24+](https://d2cbg94ubxgsnp.cloudfront.net/Pictures/100x67/2/4/0/138240_CHEMPR499-10-7b.jpg)
Supercharged catenane squeezes 24 positive charges into five-ring interlocked system
A molecular necklace – four rings threaded onto one larger ring – combines 24 positive charges within a single compound, making it the most highly charged mechanically interlocked structure ever made. The previous record-holding catenane carried only eight positive charges.