First tetrazole-bridged d–f heterometallic MOFs with a large magnetic entropy change

Abstract

A novel 3D tetrazole-bridged 3d–4f heterometallic MOF {(H₃O)₃[Gd₃Mn₂(Trz)₄]·12H₂O}_n (1) with a hexanuclear [Gd₆] cluster was obtained via in situ [2+3] cycloaddition reaction and structurally characterized, possessing good solvent and thermal stabilities, as well as a large magnetic entropy change −ΔS_m = 40.3 J kg⁻¹ K⁻¹ for ΔH = 7 T at 2.0 K. To our knowledge, it is the first example of tetrazole-bridged 3d–4f heterometallic MOFs.