Structural Probes of Reactivity, Non-Bonded Distances

There is no point in extending the list of examples, as they all follow the same pattern an electron donor and an electron acceptor in close proximity. The distance 

The loss of simplicity associated with direction-dependent contact analysis is compensated by the gain in information about the nature of non-bonded interactions, the very stuff of supramolecular chemistry. This new complexity has hardly begun to be included in force fields for atom-atom potential calculations, which adhere, for the most part, to spherical atom models as far as the non-bonded interactions are concerned. Other aspects of intermolecular distances are taken up in Chapter 12 on Hydrogen Bonding and in Chapter 13 on Molecular Packing. 

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