Ch. 7

1
Intermolecular Forces

• Ch. 7 Chemical Bonding

2
A. Definition of IMF

• Attractive forces between molecules.

• Much weaker than chemical bonds within
  molecules.

• a.k.a. van der Waals forces

3
B. Types of IMF
4
B. Types of IMF

• London Dispersion Forces

View animation online.
5
B. Types of IMF

• Dipole-Dipole Forces

View animation online.
6
B. Types of IMF

• Hydrogen Bonding

7
C. Determining IMF

• NCl3
• polar dispersion, dipole-dipole
• CH4
• nonpolar dispersion
• HF
• H-F bond dispersion, dipole-dipole, hydrogen
  bonding