Lecture 3 Notes: Wave Functions
It is a bit awkward to picture the wavefunctions for electron spin because the
electron isnt spinning in normal 3D space, but in some internal dimension that is
rolled up inside the electron. We have invented abstract state
Lecture 4 Notes: Multiple Electron
Tendencies
Now that we have treated the Hydrogen like atoms in some detail, we now
proceed to discuss the next-simplest system: the Helium atom. In this
situation, we have tow electrons with coordinates
z
r1 and r2 orbit
Lecture 6 Notes: MO Theory
+
For the simple case of the one-electron bond in H2 we have seen that using the
LCAO principle together with the variational principle led to a recipe for
computing some approximate orbitals for a system that would be very diff
Lecture 2 Notes: Exclusion Principle
Experimental evidence for electron spin
Compton Scattering (1921): AH Compton suggested that the electron is
probably the ultimate magnetic particle.
10
1
Stern-Gerlach Experiment (1922): Passed a beam of silver atoms
Lecture 1 Notes: Intro to Course
Now that we have obtained the general eigenvalue relations for angular momentum
directly from the operators, we want to learn about the associated wave functions.
Returning to spherical polar coordinates, we recall that th
Lecture 5 Notes: Hamiltonian Model
Thus far, we have learned that the independent particle model (IPM) gives a
qualitatively correct picture of the eigenstates of the helium atom. What about atoms
with more than two electrons, such as lithium or carbon? A
Lecture 10 Notes: Static Magnetic Field
Just as IR spectroscopy is the simplest example of transitions being induced by lights oscillating
electric field, so NMR is the simplest example of transitions induced by the oscillating magnetic
field. Because the
Lecture 9 Notes: Vibrational Diatomic Species
As weve emphasized many times in this course, within the Born
Oppenheimer approximation,
Harmonic
the nuclei move on a potential
Approximation
energy surface (PES)
R
A + B separated atoms
determined by the ele
Lecture 8 Notes: Spectroscopy Characteristics
In practice, even for systems that are very complex and poorly characterized, we
would like to be able to probe molecules and find out as much about the system
as we can so that we can understand reactivity, s
Lecture 7 Notes: Huckel Theory
In general, the vast majority polyatomic molecules can be thought of as
consisting of a collection of two-electron bonds between pairs of atoms. So the
qualitative picture of and -bonding and antibonding orbitals that we
dev