Vibrational spectroscopy (in Chemistry) refers to a set of popular analytical techniques (i.e. Infrared and Raman spectroscopy) used to determine the identity and purity of chemicals in a sample. Basically, a specific range of wavelengths of light is shined at the compound, the bonds between atoms in the compound absorb the light at different wavelengths (and vibrate), and based on the identity of the compound a unique spectrum (graph showing which wavelengths were absorbed and how strongly) is produced.
A molecule with 3n-6 vibrational modes has a total of 3n-6 vibrational modes.
Absorption spectra are different.
Carbon dioxide (CO2) possesses 3 vibrational modes.
Molecular vibrations are one of the ways in which a molecule stores chemical energy. For a diatomic molecule, the vibrational can be approximated by the quantum harmonic oscillator. The vibrational energy Ev is Ev = (v + 1/2)hv0 where v is an integer representing vibrational quantum numbers such that v = 0,1,2,3,..., where v=0 for a diatomic molecule at the ground vibrational state; h is Planck's constant; and v0 is the natural frequency of the harmonic oscillator.
Particles within are limited to vibrational motion, unlike the particles which make up liquids which can have vibrational & translational motion, and gaseous particles which have vibrational, translational and rotational motion.
The vibrational energy of a diatomic molecule can be approximated by extension of the quantum harmonic oscillator. The vibrational energy, Ev, is then Ev = (v + 1/2)hv0 where v is an integer representing vibrational quantum numbers such that v = 0,1,2,3,..., where v=0 for a diatomic molecule at the ground vibrational state; h is Planck's constant; and v0 is the fundamental vibrational frequency. For this problem then, you would need the fundamental vibrational frequency of the particular diatomic atom, and then simply calculate Ev for v=1, and v=2.
Laurence A. Nafie has written: 'Vibrational optical activity' -- subject(s): Vibrational spectra
The relationship between vibrational kinetic energy and the overall temperature of a system is that as the vibrational kinetic energy of the particles in the system increases, the temperature of the system also increases. This is because temperature is a measure of the average kinetic energy of the particles in a system, including their vibrational motion.
David I. Bower has written: 'The vibrational spectroscopy of polymers' -- subject(s): Analysis, Polymers, Vibrational spectra
after shock :)
When a molecule absorbs infrared electromagnetic energy, it affects the vibrational modes of the molecule.
N. Kirov has written: 'Vibrational spectroscopy of liquid crystals' -- subject(s): Analysis, Liquid crystals, Vibrational spectra