Two series of Er and Yb thiocyanates were studied as SMMs. Some empirical patterns for further development of Er and Yb based SMMs were proposed. The Δeff value for Yb aquathiocyanate is among the highest known for molecular complexes of this Ln.

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The equilibrium phase diagrams of NaCl−ZnCl 2 − H 2 O system at 260.35 and 250.15 K were studied by method of isothermal solution saturation, wet residues, and thermogravimetric analysis. Water content in precipitate at these temperatures for hydrate 2NaCl•ZnCl 2 •nH 2 O was determined, n = 3. Densities of ternary NaCl−ZnCl 2 −H 2 O solutions were measured at 288.15−321.35 K and compared with values predicting by the Laliberte model. It was shown that the model provides mainly underestimated density values.