| Abstract
| - Three blue fluorescent-emission coordination polymers 1, 2, and 3 were obtained under hydrothermal (solvothermal) reaction conditions. [Zn(CH3CN4)2]3(H2O) (1) and [Zn(4-MPTZ)2] (3) [4-MPTZ = 5-(4-methylphenyl)tetrazole] were prepared from the in situ [2+3] cycloaddition reaction of acetonitrile or p-tolylnitrile with sodium azide group in the presence of the Lewis acid Zn(ClO4)2 (Sharpless's tetrazole synthesis method), respectively, and [Zn(HCN4)2] (2) was furnished by directly reacting tetrazole with Zn(OAc)2. The structure of 1 shows a super-diamond-like topological network with a diamond subunit as the connecting node. For 2, a diamond-like topological network is also found, but it is 2-fold interpenetrated. The structure of 3 reveals a 2D layered network with a hexagonal net, with the adjacent layers in the network stacked in an ABAB sequence.
- The syntheses and luminescent properties of three novel zinc coordination polymers containing tetrazolyl ligandsare described. In situ [2+3] cycloaddition reactions of acetonitrile or p-tolylnitrile with sodium azide in the presenceof Zn(ClO4)2 as a Lewis acid (Demko−Sharpless tetrazole synthesis method) under hydrothermal (solvothermal)reaction conditions gave [Zn(CH3CN4)2]3(H2O) (1) and [Zn(4-MPTZ)2] (3) [4-MPTZ = 5-(4-methylphenyl)tetrazole],respectively. On the other hand, [Zn(HCN4)2] (2) was obtained by directly reacting tetrazole with Zn(OAc)2 underhydrothermal reaction conditions. The structure of 1 shows a super-diamond-like topological network with a diamondsubunit as a connecting node. For 2, a diamond-like topological network is also found, but it is 2-fold interpenetrated.The structure of 3 reveals a 2D layered network with a hexagonal net, with the adjacent layers in the networkstacked in an ABAB sequence. Photoluminescence studies revealed coordination polymers 1, 2, and 3 exhibitstrong blue fluorescent emissions at λmax = 396, 418, and 397 nm, respectively, in the solid state at room temperature.
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