Two photoluminescent metal-organic frameworks constructed from Cd-3(mu(3)-OH) cluster or 1D Zn-5(mu(3)-OH)(2)(mu-OH)(2) chain units and in situ formed bis(tetrazole)amine ligands

Hydrothermal reactions of CdCl2 center dot 2.5H(2)O or ZnCl2, sodium dicyanamide, and sodium azide yield two interesting photoluminescent coordination polymers, namely, [Cd{Cd-3-(mu(3)-OH)(dcadtzH)(3)(H2O)6}2] (1) and [Zn-5(mu(3)-OH)(2)(mu-OH)(2)-(dcadtz)(2)]center dot 2H(2)O (2) [dcadtzH(3) = bis(5-tetrazolyl)amine], in which triangular [Cd-3(mu(3)-OH)](5), cluster subunits in 1 and 1D [Zn-5(mu(3)-OH)(2)(mu-OH)(2)](n)(6n+) 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. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).