Internal Oscillations of a Complex Molecule

Animated gif of oscillations of the bonds of a complex molecule.

"The thermal motion of a segment of protein alpha helix. Molecules have various internal vibrational and rotational degrees of freedom. This is because molecules are complex objects; they are a population of atoms that can move about within a molecule in different ways. This makes molecules distinct from the noble gases such as helium and argon, which are monatomic (consisting of individual atoms). Heat energy is stored in molecules’ internal motions which gives them an internal temperature. Even though these motions are called “internal,” the external portions of molecules still move—rather like the jiggling of a water balloon." (

Last updated 05-Dec-2015    © 2015 Peter L. Ward. All Rights Reserved