Physisorption hydrocarbons, saturated

The electronic structure of the surface chemical bond is discussed in depth in the present chapter for a number of example systems taken from the five categories of bonding types (i) atomic radical, (ii) diatomics with unsaturated -systems (Blyholder model), (iii) unsaturated hydrocarbons (Dewar-Chatt-Duncanson model), (iv) lone pair interactions, and (v) saturated hydrocarbons (physisorption). 

The adsorption of saturated hydrocarbons on metallic substrates is typically considered as an example of a weak physical interaction, which is dominated by van der Waals forces. The classification of this type of interaction, denoted physisorption where no direct chemical bonds are formed between the adsorbate and substrate, has been based on the heat of adsorption. A physisorbed state is considered to be one in which the heat of adsorption is comparable to the heat of vaporization or... 

At low enough tempera tunes, inert gas atoms and many diuLomic or polyatomic molecules that cannot form strong chemical bonds with the surface will physisorb on surfaces. Wiih inert gases and with saturated hydrocarbons, physisorption is com-... 

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See also in sourсe #XX -- [ ]

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