CHEM 4701 Lecture Notes - Lecture 16: Opata Language
Document Summary
Chloro (purple pink) is btwn bromo (strong pi donor) and amine (not pi donor) Crystal field theory: dz2 and dx2 - y2 have more electron-electron repulsion from ligands coming from the axes the dxy, dyz, dxz ones have less repulsion --> lower energy b/c not on axes, so not as much direct repulsion. Purely electrostatic model: ligands are considered as point negative charges. -> consider attraction btwn negative charge of ligand and + charge of nucleus of the metal. Any molecule in a degenerate electronic state will be unstable and will undergo distortion that will lower its symmetry so as to split the degenerate state. Inorganic chemistry page 1 dz^2 is antibonding --> 2 axial bonds are longer start w/ octahedron. 2 long axial bonds electron in dz^2 geometry electron in dx^2-y^2 --> must stabilize dx^2-y^2 since dx^2-y^2-based orbital is antibonding --> lengthens equatorial bonds electron in dx^2-y^2. -> it"s really hard to find perfect octahedron in nature.
