Abstract
At room temperature, four complexes Ln(Hsal)2(hq) (Ln = La(III), Ce(III), Pr(III), Y(III), Hsal− = C6H4(OH)COO−, salicylate anion; hq− = C9H6NO−, 8‐hydroxyquinoline anion) were successfully synthesized by a solid‐state reaction. These complexes were further characterized by elemental analyses, electrical conductance in non‐aqueous solvents, x‐ray powder diffraction, IR and TG–DTA. IR spectra showed that the rare earth ions are not only coordinated by the oxygen atom from the COO group, but also by the nitrogen atom and oxygen atom of 8‐hydroxyquinoline. TG–DTA showed that the stability of the four complexes is better than that of sodium salicylate and 8‐hydroxyquinoline. These results show good agreement with results of the literature. The unit cells of the complexes at room temperature have been determined by x‐ray powder diffraction (XRD). The crystals of all four complexes belong to the triclinic system and P 1 space group. Unit cell parameters were found by using trial and error methods.
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