Fig. 5. (a) and (b) represent the local differential charge density plots of sd2 and sp3 hybridization, respectively. (c) and (d) represent the local configurations before and after adsorption of sp3 hybridization. The saturation levels are from −0.01 to 0.01 e Å−3. The yellow (red)/blue colours mark an increase/decrease of the charge density, respectively.
