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10:03
The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
Chemical bond-making, bond-breaking, and electron transfer in solution
Science (New York, N.Y.)
|January 26, 1990
Summary
This study introduces a method to calculate heats of heterolysis and homolysis for organic compounds using reaction heats and redox potentials. This provides new data on bond energies and ion properties.
Area of Science:
- Physical Organic Chemistry
- Thermochemistry
- Computational Chemistry
Background:
- Understanding bond dissociation energies is crucial in organic chemistry.
- Existing methods for determining these energies can be complex or limited in scope.
Purpose of the Study:
- To develop a novel method for calculating heats of heterolysis (DeltaH(het)) and homolysis (DeltaH(homo)).
- To compile a comprehensive dataset of these thermochemical values for various organic compounds.
Main Methods:
- Determining heats of reaction for resonance-stabilized carbenium ions and carbanions in solution.
- Calculating electron transfer energies (deltaG(ET)) from redox potentials.
- Correlating DeltaH(het), DeltaH(homo), and deltaG(ET) values.
Main Results:
- A reliable method for calculating DeltaH(het) from reaction heats was established.
- Conversion of DeltaH(het) to DeltaH(homo) using electron transfer energies was achieved.
- A comprehensive tabulation of DeltaH(het), DeltaH(homo), and deltaG(ET) for an extended series of organic compounds was generated.
Conclusions:
- The developed method provides accurate thermochemical data for organic compounds.
- The interrelationships between DeltaH(het), DeltaH(homo), and deltaG(ET) offer insights into ion and radical properties.
- This work expands the understanding of chemical bonding and reactivity in organic systems.
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