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Figure 1 The molecular structure of (I), showing the atom-labelling scheme. Displacement ellipsoids are at the 30% probability level. Unlabelled atoms in the molecular (a) are related to labelled atoms by (- x, 2 − y, − z). Unlabelled atoms in the molecule (b) are related to labelled atoms by (1 − x, 1 − y, 1 − z). For clarity, the DMF molecular have been omitted. |