CHEM 1062 Lecture Notes - Lecture 23: Paramagnetism, Spectrochemical Series, Diamagnetism
Document Summary
Energy of a photon e = hc / lambda. For a molecule to absorb light, the energy of the photon is precisely equal to the energy difference between 2 orbitals. When you absorb light, you are promoting an electron from an orbital of lower energy to an orbital of higher energy. The difference in energy of those 2 wavelength is exactly equal to the energy of the photon. Electron that goes from a orbital with higher energy to one lower in energy and doing so emits light. Crystal field theory = how the ligand affects the orbital of the metal. Look at transition metals so d orbitals. Applies to any complexion (in a solution or in a crystal) Electrostatic model - electron electron repulsion = electrostatic repulsion between the electrons of the ligand and the electrons of the metal. Only consider the d orbitals of the metal.
