A series of lanthanide compounds, [Ln(CHOHCHOH)(SO)]· m(CHN)· nHO (Ln = Gd (1), Sm (2), Tb (3), La (5), m = 2, n = 2; Ln = Eu (4), m = 0, n = 8), which contain Ln rings by sulfate and glycol as the ligand have been synthesized and characterized. Besides, small organic amine and l-tartaric acid act as dual templating roles during the synthetic process. Magnetic investigation of compound 1 reveals the existence of weak antiferromagnetic interactions between Gd ions and the data of magnetic entropy change (-Δ S) is 36.86 J K kg (108.55 mJ cm K) for Δ H = 7 T at 2.0 K, which is comparatively large among Gd based compounds. Additionally, because of the excellent luminescence properties of Sm, Tb, and Eu, compounds 2-4 were investigated.
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