TLS Online TPP Program

#Id: 8257

#Unit 1. Molecules and their Interaction Relevant to Biology

The negative sign also suggests that the interaction is driven by an attractive force.

TLS Online TPP Program

#Id: 8258

#Unit 1. Molecules and their Interaction Relevant to Biology

Induced Dipoles

TLS Online TPP Program

#Id: 8259

#Unit 1. Molecules and their Interaction Relevant to Biology

An induced dipole moment is a temporary condition during which a neutral nonpolar atom (i.e., Helium) undergo a separation of charges due to the environment.

TLS Online TPP Program

#Id: 8260

#Unit 1. Molecules and their Interaction Relevant to Biology

When an instantaneous dipole atom approaches a neighbouring atom, it can cause that atom to also produce dipoles.

The neighbouring atom is then considered to have an induced dipole moment.

TLS Online TPP Program

#Id: 8261

#Unit 1. Molecules and their Interaction Relevant to Biology

The potential energy of the dipole-induced dipole interaction is:

α = polarizability of the nonpolar molecule

TLS Online TPP Program

#Id: 8262

#Unit 1. Molecules and their Interaction Relevant to Biology

Even though these two atoms are interacting with each other, their dipoles may still fluctuate. However, they must fluctuate in synchrony in order to maintain their dipoles and stay interacted with each other. Result of synchronizing fluctuation of dipoles: