Less energy is needed to break these bonds, and once they are broken, atoms of nitrogen are free to form triple bonds with each other. (newscientist.com)
In air, nitrogen exists as a molecule made of two atoms stuck together by an incredibly strong triple bond. (newscientist.com)
These factors strongly favor the metallic (10,10) tube with C5v symmetry and an open edge stabilized by triple bonds. (science.sciencemag.org)