Charge-density matching principle

Charge-density matching principle and its application to uranyl oxocompounds... 

These examples demonstrate clearly that charge densities of uranyl-based sheets are in general smaller than charge densities of metal phosphate and vanadate units in lamellar compounds. However, the very existence of nanocomposite vanadates and metal phosphates means that the charge-density matching principle in these compounds is observed. Then how does it work for... 

The mechanistic interplay between micelle/liquid crystal chemistry and the polymerization/crystallization of the inorganic framework provide a rare opportunity to construct an array of new structures based on well established principles of charge density matching at the organic/inorganic interface. With these new structures, pore sizes and compositions at hand, researchers in many fields are armed with a new arsenal of materials with which to attack the nano-scopic problems. 

The corrugation of the charge density on metal surfaces can be obtained from first-principles calculations or helium scattering experiments. The theory and the experiments match very well. A helium atom can reach to about 2.5-3 A from the top-layer nuclei. At that distance, the repulsive force between the helium atom and the surface is already strong. The corrugation at that distance is about 0.03 A, from both theory and experiments. For STM,... 

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