CHEM 211 Lecture Notes - Lecture 1: Sigma Bond, Antibonding Molecular Orbital, Covalent Bond
19 Jan 2015
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Incompatible means mulikin symbols are different: be able to recognize on midterm: nonbonding, bonding, antibonding. *** make sure you make the approximate energy of the atomic orbitals accurate *** If same level, purely covalent bond: more electrons spend more time with the atom that is closer. Ignore each other completely: pure ionic, change location of e- Hf: fill in e- last, started with 8 e- so start filling 8- from bottom up, bonding pair, 3 nonbonding pair. Co: make sure you note the positions on the energy levels. 2s is non bonding so just copy it over (too low energy) and. 2s on carbon that interacts with 2p on oxygen (but only pz has correct symmetry: bonding, nonbonding, antibonding (going up in energy meaning more repulsion due to more nodes) Lone pair, 3 bonding pairs (1 sigma, 1 pi giving triple pair) Polyatomic molecules central atom on left, ligand orbitals on right, mo in middle: do the ligand.
