CHEM 101 Lecture Notes - Lecture 26: Homonuclear Molecule, Abc Radio Sydney, Diatomic Molecule
Document Summary
Lcao-mo theory - correlation diagrams & diatomic molecules (linear combination of atomic orbitals to yield molecular orbitals: for (second row) homonuclear diatomic molecules (x2) - the following. Mo symbol s1s s1s s2s s2s p2p p2p p2p p2p s2p s2p. For the above lcao-mo combinations, the coordinate system is chosen such that the. z axis is along the horizontal direction and is considered the internuclear (bond) axis. Here, the y-axis is considered to be along the vertical direction and the x-axis is considered to be perpendicular to the plane of the page. The correlation diagrams showing the energy ordering and relationship between the atomic orbitals (ao"s) and resultant molecular orbitals (mo"s) for several situations are listed below. Each mo can maximally contain two (2) electrons - with opposite spins ( ) - as required by the pauli exclusion principle (pep). Also, degenerate mo"s - when occupied - will follow hund"s rule in order to achieve a ground state (energy-preferred) electron configuration.
