Metal–organic coordination architectures of tetrazole heterocycle ligands bearing acetate groups: Synthesis, characterization and magnetic properties

•Two novel Cobalt(II) complexes with tetrazole acetate ligands were synthesized.•The magnetic properties of two complexes were studied.•Azide as co-ligand resulted in different structures and magnetic properties.•The new coordination mode of tetrazole acetate ligand was obtained.

Two new coordination complexes with tetrazole heterocycle ligands bearing acetate groups, [Co(L)2]n (1) and [Co3(L)4(N3)2·2MeOH]n (2) (L=tetrazole-1-acetate) have been synthesized and structurally characterized. Single crystal structure analysis shows that the cobalt-complex 1 has the 3D 3,6-connected (42.6)2(44.62.88.10)-ant topology. By introducing azide in this system, complex 2 forms the 2D network containing the [Co3] units. And the magnetic properties of 1 and 2 have been studied.

Graphical abstractThe synthesis, crystal structure, and magnetic properties of the new coordination complexes with tetrazole heterocycle ligands bearing acetate groups are reported.Figure optionsDownload full-size imageDownload as PowerPoint slide