Scientists have set up and observed a single electron bond between two carbon molecules. A traditional “single bond” is actually two electrons—one from each atom. This is one electron.

Carbon nanotubes have many desirable properties such as a high strength and low weight compared with volume, energy and fuel storage capability, electron emission capability ... closely packed ...

Electron paramagnetic resonance ... This is the first known compound where a carbon center persists in the same electronic configuration and spin state as that of an isolated ground-state carbon ...