The name/synonym for ligand VO4 (curated from ChEBI, PubChem, and PDB databases):

1VANADATE(3-)
2VANADATE ION
3TETRAOXIDOVANADATE(3-)
4ORTHOVANADATE
5VO4(3-)
6VANADATE
7[VO4](3-)
8TETRAOXOVANADATE(V)
9TETRAOXOVANADATE(3-)
10ORTHO-VANADATE