Spherical shells notation

That is, the average number of oxygen atoms within a spherical shell of radius for a metal ion chosen to be at the origin. If Vg is chosen as Td, this value of the running coordination number is usually referred to as the coordination number, which we write in a generalization of the Cotton-Wilkinson notation as /imo- Thus far, the temporal stability of the aquaion has not been mentioned even for labile aquaions such as K+ or Cl , nuo can always be defined in the preceding sense. Whether the concept of an aquaion is useful in the Cotton-Wilkinson description is a different matter. 

The BOLS notation considers variation of atomic coh from atoms in the skin only. Using the same spherical dot containing N atoms with N, atoms in the fth surface shell, the average ( coh( )) ( b(N)) is. 

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