Synthesis and spectroscopic, thermal, and XRD studies on trivalent lighter rare-earth complexes of 2,3-pyrazinedicorboxylate with hydrazinium cation

Hydrazinium lanthanide 2,3-pyrazinedicarboxylate hydrates of composition (N2H5)[Ln(pyz(COO)2)2 (H2O)] · nH2O, (pyz(COO)2=2,3-pyrazinedicarboxylate), where Ln=La, Pr and Nd if n=4 and Ln=Sm, Dy and Ce if n=0, have been prepared and characterized by physico-chemical methods.