Synthesis and Thermal Characterization of Lanthanide(III) Complexes with Mercaptosuccinic Acid and Hydrazine as Ligands

Figure 1

Comparison of IR spectrum of (a) [La(N₂H₄)₂{CH₂(COO)CH(SH)(COO)}_1.5]⋅(H₂O), (b) [Pr(N₂H₄)₂{CH₂(COO)CH(SH)(COO)}_1.5]⋅(H₂O), (c) [Nd(N₂H₄)₂{CH₂(COO)CH(SH)(COO)}_1.5]⋅(H₂O), (d) [Sm(N₂H₄)₂{CH₂(COO)CH(SH)(COO)}_1.5]⋅(H₂O), and (e) [Gd(N₂H₄)₂{CH₂(COO)CH(SH)(COO)}_1.5]⋅(H₂O).