Difluorine complex
A difluorine complex is a molecular complex involving a difluorine molecule and another molecule. The first example was gold heptafluoride. Instead of being a gold compound, AuF7 is an adduct of gold pentafluoride and F2. This conclusion has been repeatedly supported by calculations. Unlike dihydrogen complexes, which feature η2-H2, difluorine complexes feature "end-on" or η1-F2 ligand.
