Figure 2
(a) Three-dimensional deformation electron-density map as rapidly obtained from fast Fourier transform by the program molecoolQt (Hübschle & Dittrich, 2011) with turquoise/orange isosurfaces of ±0.056 e Å−3. The molecular dipole moment vector from invariom refinement (red color) is compared with the theoretical DFT result (green, see text), both with a scale of 0.5 Debye per Å. (b) Electrostatic potential of ceftazidime mapped on the 0.0067 e Å−3 electron-density isosurface. |