When an external electric field is applied at infrared frequencies or less, the molecules are bent and stretched by the field and the molecular dipole moment changes.
12.
For polyatomic molecules there is more than one bond, and the total molecular dipole moment may be approximated as the vector sum of individual bond dipole moments.
13.
This might either be caused by a reconfiguration of the dipole-inducing surrounding or by re-orientation of molecular dipole moments under the influence of the external stress.
14.
These trends can be attributed to the fact that the dipoles of the substituents in a " cis " isomer will add up to give an overall molecular dipole.
15.
Diathermy is used by some as a synonym for electrosurgery but in other contexts diathermy means dielectric heating, produced by rotation of molecular dipoles in a high frequency electromagnetic field.
16.
Bis ( cyclopentadienyl ) beryllium or beryllocene ( Cp 2 Be ) with a molecular dipole moment of 2.2 D rules out a classical metallocene with two hapticity 5 ligands.
17.
When the capacitor is discharging, the strength of the electric field is decreasing and the common orientation of the molecular dipoles is returning to an undirected state in a process of decay exponentially.
18.
These dipoles can absorb energy from the incident radiation, reaching a maximum coupling with the radiation when the frequency is equal to the fundamental vibrational mode of the molecular dipole ( e . g.
19.
For example, the water molecule ( H 2 O ) contains two polar O " H bonds in a molecular dipole with its negative pole at the oxygen and its positive pole midway between the two hydrogen atoms.
20.
The physical chemist Peter J . W . Debye was the first scientist to study molecular dipoles extensively, and, as a consequence, dipole moments are measured in units named " debye " in his honor.
