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Figure 1 Molecular structure of the two independent molecules (1 and 2) of compound (II), showing the crystallographic atom-numbering scheme and displacement ellipsoids drawn at the 50% probability level. The disordered N-oxide O-atoms, O1B and O21B, bonded to atoms N2 and N22, respectively, are drawn with red and white checkered patterned ellipses. The hydrogen atoms have been omitted for clarity. |