Abstract
| - An effective solvothermal procedure has been developed to synthesize the new three-dimensionalmetal−organic framework, [ZnF(AmTAZ)]·solvents, using either 3-amino-1,2,4-triazole (AmTAZ) or 3-amino-1,2,4-triazole-5-carboxylic acid (AmTAZAc) and a choice of several Zn(II) salts as starting materials. Thethree-dimensional structure displays open-ended, hollow nanotubular channels that are formed byhexanuclear metallamacrocyclic Zn6F6(AmTAZ)6 rings. The framework integrity is maintained to 350 °C, atwhich point most of the guest solvent molecules have been removed, as evidenced by single-crystal X-rayanalyses, 1H solid-state NMR, and TGA measurements. At higher temperatures, the framework is convertedeither to zinc oxide (ZnO) when heated in air or to zinc cyanamide (ZnCN2) when heated in an inertatmosphere. In both cases, the as-grown, rodlike crystal shape is maintained during the solid-statetransformation, suggesting a possible route for preparing one-dimensional crystalline nanomaterials.
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