Abstract

Tetrazole–carboxylate ligands are excellent building blocks to construct novel coordination architectures. 5-Aminotetrazole-1-isopropionic acid (Hatzipa) and 3,3-di(1H-tetrazol-5-yl)pentanedioic acid (H4dtzpda) were prepared. And reactions of the two ligands with CdCl2·2.5H2O afforded [Cd(atzipa)2(H2O)(EtOH)] (1) and [Cd2(H2dtzpda)2(H2O)3]·3H2O (2), respectively. Compound 1 shows a two-dimensional layer structure, whereas compound 2 is a three-dimensional network composed of Cd2+ and octa-dentate H2dtzpda2− via the tetrazole-N and the carboxylate group in a μ1,1,3-COO mode. The luminescence properties of Hatzipa, H4dtzpda and the compounds were investigated at room temperature in the solid state.

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