books.google.co.uk - The biggest change in the years since the first edition is the proliferation of computational chemistry programs that calculate molecular properties. McQuarrie presents step-by-step SCF calculations of a helium atom and a hydrogen molecule, in addition to including the Hartree-Fock method and post-Hartree-Fock...http://books.google.co.uk/books/about/Quantum_chemistry.html?id=zzxLTIljQB4C&utm_source=gb-gplus-shareQuantum chemistry