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  • Title: One-dimensional metal-organic framework with unprecedented heptanuclear copper units.
    Author: Ferrer S, Aznar E, Lloret F, Castiñeiras A, Liu-González M, Borrás J.
    Journal: Inorg Chem; 2007 Jan 22; 46(2):372-4. PubMed ID: 17279812.
    Abstract:
    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(mu3-OH(1/2))L(H2O)2Cl}2{mu-Cu(H2O)2Cl2}].12H2O]n (1), where L is a new triazole-derived macrocyclic ligand. The structure of 1 consists of heptanuclear (H)OCuII(3)-CuII-CuII(3)O(H) entities linked in pairs through symmetric mu3-O...H...O-mu3 hydrogen bonds to form a double-stranded one-dimensional network. A significant overall antiferromagnetic behavior has been observed for 1.
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