The Bennu samples from NASA were handled under nitrogen to prevent contamination by Earth's atmosphere. A 17.75 mg sample was processed and analyzed for N-heterocycles—organic molecules with a ring ...

Researchers at the University of Oklahoma have developed a breakthrough method of adding a single nitrogen atom to molecules, unlocking new possibilities in drug research and development.

A 17.75 mg sample was processed and analyzed for N-heterocycles—organic molecules with a ring structure containing carbon and nitrogen—using high-resolution mass spectrometry at Kyushu University.

But making similar heterocycles from heavier pnictogen ... diazadistiboylidenes—five-membered rings that contain two antimony atoms, two nitrogen atoms, and a carbon atom. Bismuto says he ...

nitrogen and carbon atoms. The resulting stiboylidene served as an intermediary to promote the substitution of a species with bonds formed during donation of electron pairs. The researchers note ...