Two Photoluminescent Metal–Organic Frameworks Constructed from Cd 3 (μ 3 ‐OH) Cluster or 1D Zn 5 (μ 3 ‐OH) 2 (μ‐OH) 2 Chain Units and In Situ Formed Bis(tetrazole)amine Ligands

Hydrothermal reactions of CdCl 2 · 2.5H 2 O or ZnCl 2 , sodium dicyanamide, and sodium azide yield two interesting photoluminescent coordination polymers, namely, [Cd{Cd 3 (μ 3 ‐OH)(dcadtzH) 3 (H 2 O) 6 } 2 ] ( 1 ) and [Zn 5 (μ 3 ‐OH) 2 (μ‐OH) 2 (dcadtz) 2 ] · 2H 2 O ( 2 ) [dcadtzH 3 = bis(5‐tetrazolyl)amine], in which triangular [Cd 3 (μ 3 ‐OH)] 5+ cluster subunits in 1 and 1D [Zn 5 (μ 3 ‐OH) 2 (μ‐OH) 2 ] n 6 n + chain subunits in 2 are linked by in situ generated bis(tetrazole)amine ligands to generate an interesting 2D coordination net and a 3D microporous metal–organic framework, respectively. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)