• Chemical reaction due to stronger Ramachandran interaction

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/126/03/0677-0689

    • Keywords

       

      Chemical reaction; Ramachandran interaction; anisotropic and asymmetric polarization; ionization energy theory.

    • Abstract

       

      The origin of a chemical reaction between two reactant atoms is associated with the activation energy, on the assumption that, high-energy collisions between these atoms, are the ones that overcome the activation energy. Here, we show that a stronger attractive van der Waals (vdW) and electron-ion Coulomb interactions between two polarized atoms are responsible for initiating a chemical reaction, either before or after the collision. We derive this stronger vdW attraction formula exactly using the quasi one-dimensional Drude model within the ionization energy theory and the energy-level spacing renormalization group method. Along the way, we expose the precise physical mechanism responsible for the existence of a stronger vdW interaction for both long and short distances, and also show how to technically avoid the electron-electron Coulomb repulsion between polarized electrons from these two reactant atoms. Finally, we properly and correctly associate the existence of this stronger attraction with Ramachandran’s `normal limits’ (distance shorter than what is allowed by the standard vdW bond) between chemically nonbonded atoms.

    • Author Affiliations

       

      Andrew Das Arulsamy1

      1. Condensed Matter Group, Institute of Interdisciplinary Science, No. 24, level-4, Block C, Lorong Bahagia, Pandamaran, 42000 Port Klang, Selangor DE, Malaysia
    • Dates

       
  • Journal of Chemical Sciences | News

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