Two-dimensional Mn(II) and Cd(II) networks with tetrazole-containing ligand and their properties

•Two-dimensional coordination networks with kgd topology were prepared.•The networks exhibit different stacking modes between the adjacent layers.•Fluorescence and magnetic properties of the complexes were studied.

Three new Mn(II) and Cd(II) coordination polymers with kgd network topology, namely, [Mn3(T4)2(DEF)6] · 2H2O (1), [Mn3(T4)2(DMSO)2(CH3OH)4] · 2CH3OH · 3H2O (2) and [Cd3(T4)2(DMF)6] · 5CH3OH · 3DMF · H2O (3), have been prepared by reactions of tris[4-(1H-tetrazol-5-yl)phenyl]amine (H3T4) with corresponding metal salt and characterized by single crystal and powder X-ray diffractions, IR and thermogravimetric analyses. In compounds 1 and 3, the layers adopt center to center stacking, while there is a slight shifting between the adjacent layers in compound 2. Complexes 1 and 2 exhibit overall weak antiferromagnetic coupling between the neighboring Mn(II) atoms, and compound 3 shows luminescent property in the solid state at room temperature.

Graphical abstractThree new Mn(II) and Cd(II) coordination networks with kgd topology, namely, [Mn3(T4)2(DEF)6] · 2H2O (1), [Mn3(T4)2(DMSO)2(CH3OH)4] · 2CH3OH · 3H2O (2) and [Cd3(T4)2(DMF)6] · 5CH3OH · 3DMF · H2O (3), have been prepared by reactions of tris[4-(1H-tetrazol-5-yl)phenyl]amine (H3T4) with corresponding metal salt and characterized.Figure optionsDownload full-size imageDownload as PowerPoint slide