Unraveling the Nature of Chemical Reactivity of Complex Systems

Abstract

Exciting a stretching mode of a bond in a reactant should increase the likelihood of the bond breaking during a chemical reaction or, at the very least, have no impact on the reaction, according to conventional wisdom. A series of crossed molecular beam studies of the Cl + CHD3/CH4/CH2D2 reactions, performed at IAMS, confirm this expectation. However, similar experiment on F + CHD3 has shown that, counter-intuitively, exciting the C-H bond effectively impedes its breakage to form HF + CD3. The rate of the other possible reaction pathway - which leads to DF and CHD2 - also slows down.

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Document Details

Document Type
Technical Report
Publication Date
May 19, 2010
Accession Number
ADA520893

Entities

People

  • Kopin Liu

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aqueous Solutions
  • Atmospheric Chemistry
  • Chemical Compounds
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Complex Systems
  • Computational Chemistry
  • Dynamics
  • Energy
  • Excitation
  • Femtosecond Lasers
  • Ground State
  • Mass Spectrometers
  • Molecular Beams
  • Molecular Dynamics
  • Reactivities

Readers

  • Molecular Photonics/Laser Physics
  • Quantum Chemistry
  • Systems Analysis and Design