Here are proven, high-quality resources (verified as of 2026):
| Source | Description | Best For | |--------|-------------|----------| | MIT OpenCourseWare – 5.61 Physical Chemistry | Full lecture notes + problem sets. Covers QM postulates, atoms, molecules. | Undergraduates | | UC Berkeley – Chem 120A | Detailed notes on angular momentum, perturbation theory, and molecular orbitals. | Advanced undergraduates | | University of Cambridge – Part IB Chemistry | Concise, rigorous notes with emphasis on variational method and Hückel theory. | Exam preparation | | T. C. P. (Theoretical Chemistry Portal) | Annotated notes linking quantum mechanics to spectroscopy and dynamics. | Graduate students | | LibreTexts – Quantum Chemistry | Modular, wiki-style book that can be exported as PDF. Excellent for reference. | All levels |
Tip: Search for “Quantum Chemistry lecture notes PDF site:edu” for university-hosted materials. quantum chemistry lecture notes pdf
Most university professors host their notes on their faculty pages, which are not always indexed by standard searches. Use these specific search operators in Google:
Hamiltonian for He atom (( Z=2 )):
[
\hatH = -\frac\hbar^22m\nabla_1^2 - \frac\hbar^22m\nabla_2^2 - \frac2e^24\pi\epsilon_0 r_1 - \frac2e^24\pi\epsilon_0 r_2 + \frace^24\pi\epsilon_0 r_12
]
The ( e^2/r_12 ) term (electron repulsion) prevents exact solution. Here are proven, high-quality resources (verified as of
Hartree–Fock method:
Electron spin:
Term symbols: ( ^2S+1L_J ), e.g., ( ^3P_0 ) for carbon ground state.