Synthesis, study of nanoscale complexes of Lantan, Gadolini with L-glulamic acid ligand mixture. The results synthesized complexes of La, Gd with L-glulamic acid and imidazol ligands. The complex is composed of Ln (HGlu) 3Im 3HCl.3H20 (Ln: La, Gd). Each L-glulamic acid molecule occupies 2 coordinating positions in the complex, linked with Ln3 + ions through the group's nitrogen atom (-NH2) and the oxygen atom of the group (-COO-), the imidazol molecule to bind to ion Ln3 + via nitrogen number 3 of heterocyclic. The heat-stable complexes, in the form of rods, average size of about 50-60 nm.