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Figure 2
The mol­ecular structure of (Ib)[link], showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 50% probability level. The second possible position of the disordered 1-methyl-2-pyrrolidone mol­ecule has been omitted. Dotted lines indicate hydrogen bonds. [Symmetry code: (A) x, −y + [1 \over 2], z.]

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
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