Structural diversity and magnetic properties of five copper-organic frameworks containing one-, two-, and three-types of organic ligands.

Five novel compounds {[Cu(CMA)]·0.8H(2)O}(n) (1), {[Cu(CMA)(bpy)(0.5)]·0.

3 D MOFs containing trigonal bipyramidal Ln5 clusters as nodes: large magnetocaloric effect and slow magnetic relaxation behavior.

Two 3D heterometal-organic frameworks based on infrequent trigonal bipyramidal Ln(5)  clusters as nodes were structurally and magnetically characterized (Ln=Gd (1), Dy (2)). The results indicate large MCE of up to 30.7 J kg(-1)  K(-1) in 1 and slow magnetic relaxation behavior in 2.