All-metal aromatic ring isolated for the first time
![All-metal aromatic ring isolated for the first time](https://d2cbg94ubxgsnp.cloudfront.net/pictures/280x188/2/5/8/535258_indexs4155702401530z3_209909.jpg)
Bismuth species raises questions about the nature of aromaticity in molecules composed of heavier elements
Bismuth species raises questions about the nature of aromaticity in molecules composed of heavier elements