A copper (II) catalyzed Baeyer-Villiger reaction of 2-butanone in the presence of oxygen and 2-amino-5-nitropyridine produced crystals of
bis(2-amino-5-nitropyridine)tetraacetatedicopper(II) dehydrate, (1). 1 and its anhydrous form, (bis-2-amino-5-nitropyridine)tetraacetatedicopper(II), (2), were then synthesized directly from Cu(CH3COO)2∙H2O and 2-amino-5-nitropyridine. Crystals of both compounds
were grown using slow evaporation, and characterized using IR, combustion analysis, X-ray powder diffraction, single crystal X-ray
diffraction, and temperature-dependent magnetic susceptibility measurements. 1 and 2 are both monoclinic and crystallize in the space
groups P21/c and C2/m, respectively. 2 exhibits 2-fold disorder in the 2-amino-5-nitropyridine molecule that arises due to symmetry. Both
compounds pack in sheets of isolated dimers, and exhibit strong antiferromagnetic interactions within the dimers (J = -442(5) and -471(5)
K for 1 and 2 respectively).
Key words: copper complex, XRD, IR, magnetization.
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