For long time, molecular rotations could not be directly observed experimentally.

His analysis resulted in the introduction of half-integral quantum numbers to account for molecular rotation.

This is the first experimental demonstration of electrical energy successfully coupling to directed molecular rotation.

If the internal degree of freedom is molecular rotation, the name rotor phase is also used.

Some authors, however, define the axis as the molecular rotation axis of highest order.

This is due to proton transfer between adjacent molecules in each pleated sheet, rather than molecular rotation.

The low-symmetry monoclinic form is observed when molecular rotation is locked by temperature or strain.

Since vibrational energy is generally much greater than the thermal agitation, it rapidly disperses in the solvent through molecular rotation.

Born and Oppenheimer wrote the paper: This paper describes the separation of electronic motion, nuclear vibrations, and molecular rotation.

Molecular rotation and vibration spectra were understood and the electron's spin was discovered, leading to the confusion of half-integer quantum numbers.

Around that time, he formed a group of young scientists to work on radiospectroscopy of molecular rotations and vibrations, and later on quantum electronics.

Molecular rotation occurs in materials containing polar molecules having an electrical dipole moment, with the consequence that they will align themselves in an electromagnetic field.

Molecular spectra can be obtained due to electron spin states (electron paramagnetic resonance), molecular rotations, molecular vibration and electronic states.

They derive from molecular rotation of CH 3 X, and can be worked out by representing the local motion by arrows curved round the M-P bonds.