Luminescent boracite-like metal–organic frameworks constructed by Cu-centered CuCu4 tetrahedra and CuCu3 triangles with an acentric cubic superlarge cell

Abstract

Solvothermal treatment of copper halides and 3-amino-5-mercapto-1,2,4-triazole (H₂amtz) produced three isostructural complexes [Cu₃₁X₄(H_1.55amtz)₂₄](SO₄)₈·xDMF [X = Cl, Br and I, x ∼ 32], which show 3-D networks with bor topology constructed by Cu-centered CuCu₄ tetrahedra and CuCu₃ triangles with an acentric cubic superlarge cell.