Figure 2
A section of the difference electron-density map for the present redetermined title structure, which shows the build-up of the electron density between the atom O4 (red) and N1 (blue). Positive and negative electron densities are indicated by continuous and dashed lines, respectively. The increment of electron density between neighbouring contours is 0.05 e Å−3 (JANA2006; Petříček et al., 2014). |