Lecture 04 - Electronegativity, Bond Strength, Electrostatics, and Non-Bonded Interactions. A student provides insight on fractional-order rate laws. Bonds involving atoms with lone-pair electrons are weakened by
electron-pair repulsion. Electronegativity differences between atoms make ionic dissociation (heterolysis) easier and radical dissociation (homolysis) harder, although Pauling's definition of electronegativity makes the logic of
the latter effect somewhat circular. The course transitions from free-radical reactions to ionic reactions by discussing solvent properties, in particular the electrostatic properties of alkyl halides and alkanes.
(from oyc.yale.edu)
Lecture 04 - Electronegativity, Bond Strength, Electrostatics, and Non-Bonded Interactions
Time
Lecture Chapters
[00:00:00]
1. Generalization of Fractional-Order Rate Laws
[00:03:44]
2. Electron-Pair Repulsion and Bond Dissociation Energy
[00:07:48]
3. Heterolysis and Homolysis - Pauling's Electronegativity and Bond Dissociation Energy
[00:27:04]
4. Alkyl Halides - Electrostatics, Non-bonded Interactions, and Solvent Properties