Acta Cryst. (2009). C65, m361-m366 [ doi:10.1107/S0108270109031989 ]
Formula: [Cu(NO3)2(C6H6N2O)2(H2O)2] and [Cu(C6H6N2O)4(H2O)2](ClO4)2
Online 26 August 2009
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