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Figure 4 The deformation of electron distribution revealed in difference Fourier synthesis; (a) The Fobs and difference syntheses for a title compound contoured at 2.27 e Å3 (2.0 σ level, blue) and ±0.13 e Å−3 (±3.5 σ level, green and red), respectively; (b) The Fobs and difference syntheses contoured at 2.27 e Å−3 (2.0 σ level, blue), ±0.11 e Å3 (±3.0 σ level, green and red), respectively, hydrogen atoms are omitted. |