Sentences with phrase «ground vibrational state»

Not exact matches

This is done by exciting the molecule, by infrared laser light, into a vibrational state that spontaneously decays into the ground state.

«In conclusion, we demonstrated how sub-natural line width vibrational resolved RIXS gives direct experimental access to the ground state potential energy surface around selected atomic sites and moieties, not accessible with other techniques.

In these regions, excited rotational - vibrational («rovibrational») states of the ground electronic state of H

We detect C3 in absorption arising from the warm envelope surrounding the... ▽ More We present spectrally resolved observations of triatomic carbon (C3) in several ro - vibrational transitions between the vibrational ground state and the low - energy nu2 bending mode at frequencies between 1654 - 1897 GHz along the sight - lines to the submillimeter continuum sources W31C and W49N, using Herschel's HIFI instrument.

A convenient way to address it is to test for odor character differences between deuterated and undeuterated odorant isotopomers, since these have identical ground - state conformations but different vibrational modes.

In principle, odorant isotopomers provide a possible test of shape vs. vibration mechanisms: replacing, for example, hydrogen with deuterium in an odorant leaves the ground - state conformation of the molecule unaltered while doubling atomic mass and so altering the frequency of all its vibrational modes to a greater or lesser extent [11].

When an air molecule collides with the CO2 molecule the vibrational energy is converted to kinetic energy and the air molecule is now hotter, while the CO2 molecule returns to its ground state.

The molecules, even in the vibrational ground state are vibrating back and forth about the equilibrium value (in CO2 the primary importance is bending away from linear, back and forth).

My main point is that my substantial physics training leads me to believe that the main impact of GHGs is vibrational excitation followed by return to the ground state, emitting a photon of the same wavelength but in a random direction, rather than by any significant transfer of internal vibrational energy to thermal energy of surrounding molecules.