In the January/February issue of the magazine American Scientist, Chemistry Nobel Laureate Roald Hoffmann took exception to scientists applying the concept of aromaticity beyond organic molecules to ...

(Phys.org)—Macrocyclic and chelating molecules are important in physiological processes and pharmaceuticals. Hemoglobin, for example, is a chelating molecule in which iron is coordinated to donor ...

Pushing the limits of size constraints in chemistry, an 8-nanometer 18-porphyrin nanoring (c-P18) becomes the largest known cyclic molecule to exhibit detectable global aromaticity. This phenomenon, ...

For nearly 40 years, organic chemists have been fascinated by the idea of aromatic molecules that have the topology of a Möbius strip. No such molecule has been isolated — until now. In 1964, not long ...

The infinity symbol–shaped molecule known as infinitene caught chemists’ attention in 2021. Calculations from a team at the University of Helsinki now suggest that the molecule might be aromatic after ...

Chemists have long been interested in synthesizing compounds that push the boundaries of conventional molecular structure. Incorporating metal centres into the ring unit of highly strained and ...