Abstract

Total Coulomb interactions between non-bonded atoms behave in general in a 'quasi-additive' fashion, not only in simple linear and branched paraffins, but also in polycyclic hydrocarbons constructed from chair and boat cyclohexane rings. Because of their relative insensitivity to structural features, they cannot be regarded as being the leading terms in the explanation of energetic effects related to structural changes. The prime factors governing molecular stabilities, as well as the explanation of the structural effects which are at their origin, are found in the behavior of the charge dependent energy contributions associated with bonded atoms, i.e., in the chemical bonds themselves.

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