|Hitchcock Foundation Lectures: "The Development of the Concept of Chemical Bond." January 17, 1983.
University of California, Berkeley.
Research by Walter Heitler and Fritz London. (1:15)
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Linus Pauling: The same year Walter Heitler and Fritz London, I don't have the dates of their birth
and death, both, they both died, carried out the treatment of the hydrogen molecule
as involving resonance between two normal hydrogen atoms. You have an electron with
positive spin on one and essentially the normal state 1s orbit and with negative spin
on the other. But there's another structure were the two electrons have interchanged
positions. The fact that you have two structures introduces the term that you can
call a resonance integral in the energy and this is the prototype of the valence bond
method. The actual structure of the hydrogen molecule is a sort of intermediate one,
perhaps three-quarters the Heitler-London sort and well perhaps half-and-half, it
has about, it has some, some of the Biro structure where the dual electrons are on
the same atom or the Condon structure.
ClipCreator: Linus Pauling
Associated: Walter Heitler, Fritz London
Clip ID: 1983v.2-method
Full WorkCreator: Linus Pauling
Associated: University of California, Berkeley
Date: January 17, 1983
Copyright: More Information