The name/synonym for ligand ALF (curated from ChEBI, PubChem, and PDB databases):

1TETRAFLUOROALUMINATE(1-)
2ALF4(-)
3TETRAFLUORIDOALUMINATE(1-)
4TETRAFLUOROALUMANUIDE
5TETRAFLUOROALUMINATE ION
6[ALF4](-)
7TETRAFLUOROALUMINATE ANION