One-Dimensional Metal-Organic Framework with Unprecedented Heptanuclear Copper Units
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The reaction of copper(II) sulfate, copper(II) chloride, 3,5-diacetylamino-1,2,4-triazole, and 3-acetylamino-5-amino-1,2,4-triazole in water yields green, plate-shaped crystals of [[{Cu3(ntities/mgr.gif">3-OH1/2)L(H2O)2Cl}2{ntities/mgr.gif">-Cu(H2O)2Cl2}]·12H2O]n (1), where L is a newtriazole-derived macrocyclic ligand. The structure of 1 consists ofheptanuclear (H)OCuII3-CuII-CuII3O(H) entities linked in pairsthrough symmetric ntities/mgr.gif">3-O···H···O-ntities/mgr.gif">3 hydrogen bonds to form adouble-stranded one-dimensional network. A significant overallantiferromagnetic behavior has been observed for 1.

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