Fig. 6: Images of possible constructed solid surface frustrated Lewis pairs on AlOOH (010).
From: Solid surface frustrated Lewis pair constructed on layered AlOOH for hydrogenation reaction

Optimized structure of AlOOH surface with one OH defect a, two OH defects b and one OHv and OHv c. Electrondensity isosurface of AlOOH surface with one OH defect d, two OH defects e and one OHv and OHv f. The color bar represents the electrostatic potential scale.