Heteronuclear Diatomic MO diagrams

Description

Modified Model based on the model of Michael Aristov is licensed under Creative Commons Attribution-ShareAlike. https://skfb.ly/6V9Lu Heteronuclear diatomic molecules consist of two different atoms for example carbon and nitrogen. The atoms will not have the same electronegativity and their atomic orbitals will have different energies. The atom with the higher electronegativitiy will have atomic orbitals with the lowest energy. The molecular orbitals are no longer symmetrical either. The bonding molecular orbitals will be more similar to the atom with the higher electronegativity and lower energy. This is shown in green. The anti bonding molecular orbitals will be more similar to the atom with the lower electronegativity and higher energy. This is shown in purple. The electron density of bonding electrons is likely to be closer to the more electronegative atom since more electronegative atoms attract electrons stonger. This results in a polar covalent bond.