Dinitrogen ligands — key for understanding how atmospheric nitrogen can be reduced — almost exclusively have even-numbered oxidation states. Now, however, lanthanide complexes with [N 2] 3− ...

Although nitrogen is very abundant in the atmosphere as dinitrogen gas (N 2), it is largely inaccessible in this form to most organisms, making nitrogen a scarce resource and often limiting ...

Although nitrogen gas (N 2) is plentiful, it is largely unavailable to most organisms without a process known as nitrogen fixation, which converts dinitrogen to ammonium—a major inorganic ...