Molecular Orbitals Mathematical Combination of Atomic Orbitals add bonding molecular orbital represented by: o-bonding MO
Molecular Orbitals Mathematical Combination of Atomic Orbitals
Antibonding Molecular Orbital Destructive Overlap Creates Node add node represented by: antibonding molecular orbital node σantibonding MO
Antibonding Molecular Orbital Destructive Overlap Creates Node
Sigma Bonding Electron density lies between the nuclei. A bond may be formed by s-s,p-p,s-p,or hybridized orbital overlaps. The bonding molecular orbital (MO)is lower in energy than the original atomic orbitals. The antibonding MO is higher in energy than the atomic orbitals. Chapter 2 8
Sigma Bonding • Electron density lies between the nuclei. • A bond may be formed by s—s, p—p, s—p, or hybridized orbital overlaps. • The bonding molecular orbital (MO) is lower in energy than the original atomic orbitals. • The antibonding MO is higher in energy than the atomic orbitals. Chapter 2 8
o and o*of H2 node antibonding energy atomic orbital 0 atomic orbital bonding molecular orbital
s and s* of H2
Electron Configurations d 3s 2p 2s 1s
Electron Configurations