• A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged...
    20 KB (2,706 words) - 09:17, 6 September 2024
  • Thumbnail for Molecular geometry
    is molecular vibration, which corresponds to internal motions of the atoms such as bond stretching and bond angle variation. The molecular vibrations are...
    23 KB (2,314 words) - 11:20, 14 September 2024
  • Thumbnail for Infrared spectroscopy
    modes of molecular vibrations. The mid-infrared, approximately 4,000–400 cm−1 (2.5–25 μm) is generally used to study the fundamental vibrations and associated...
    54 KB (6,062 words) - 21:02, 9 September 2024
  • measuring molecular vibrations using inelastic electron tunneling as Turin claimed, rather than responding to molecular keys fitting molecular locks, working...
    31 KB (3,856 words) - 22:26, 2 January 2024
  • Thumbnail for Raman scattering
    the number of vibrational modes is 3N-5, whereas for a non-linear molecule the number of vibrational modes is 3N-6. Molecular vibrational energy is known...
    32 KB (4,071 words) - 14:33, 24 July 2024
  • Thumbnail for Molecular symmetry
    Each normal mode of molecular vibration has a symmetry which forms a basis for one irreducible representation of the molecular symmetry group. For example...
    47 KB (3,958 words) - 13:37, 19 September 2024
  • Thumbnail for Quantum harmonic oscillator
    diatomic molecule Bertrand's theorem – Physics theorem Mehler kernel Molecular vibration – Periodic motion of the atoms of a molecule The normalization constant...
    44 KB (6,975 words) - 03:44, 20 September 2024
  • Rotational–vibrational spectroscopy is a branch of molecular spectroscopy that is concerned with infrared and Raman spectra of molecules in the gas phase...
    49 KB (6,786 words) - 17:46, 28 June 2024
  • Thumbnail for Olfactory receptor
    mechanism of the vibrational frequencies of odorants could be easily suppressed by quantum effects of nonodorant molecular vibrational modes. Hence multiple...
    36 KB (4,353 words) - 15:38, 20 September 2024
  • Thumbnail for Simple harmonic motion
    approximation). Simple harmonic motion can also be used to model molecular vibration. Simple harmonic motion provides a basis for the characterization...
    15 KB (2,213 words) - 21:15, 6 September 2024
  • Thumbnail for Spectroscopy
    states. Molecular spectra can be obtained due to electron spin states (electron paramagnetic resonance), molecular rotations, molecular vibration, and electronic...
    42 KB (4,624 words) - 22:51, 11 August 2024
  • Thumbnail for Rotational spectroscopy
    quantum number. An assumption underlying these expressions is that the molecular vibration follows simple harmonic motion. In the harmonic approximation the...
    51 KB (7,154 words) - 19:22, 3 May 2024
  • Thumbnail for Speed of sound
    influenced by molecular vibration (see heat capacity). However, vibrational modes simply cause gammas which decrease toward 1, since vibration modes in a...
    56 KB (7,944 words) - 13:08, 6 September 2024
  • Thumbnail for Electromagnetic spectrum
    strongly at the lower end of this region. This radiation is absorbed by molecular vibrations, where the different atoms in a molecule vibrate around their equilibrium...
    47 KB (4,829 words) - 05:40, 4 September 2024
  • atoms also has vibrational energy, where the individual atoms move with respect to one another. A diatomic molecule has one molecular vibration mode: the two...
    17 KB (2,318 words) - 00:20, 20 October 2023
  • Thumbnail for Molecule
    Molecule (redirect from Molecular)
    molecules Molecular biology Molecular design software Molecular engineering Molecular geometry Molecular Hamiltonian Molecular ion Molecular modelling...
    33 KB (3,697 words) - 17:53, 8 August 2024
  • Thumbnail for Carbon dioxide
    significant vibrational motions and do not keep a fixed structure. However, in a Coulomb explosion imaging experiment, an instantaneous image of the molecular structure...
    113 KB (13,046 words) - 17:05, 11 September 2024
  • Thumbnail for Triatomic molecule
    Triatomic molecule (category Molecular vibration)
    longitudinal vibrations with frequency ω a = k 1 M m A m B {\displaystyle \omega _{a}={\sqrt {\frac {k_{1}M}{m_{A}m_{B}}}}} Symmetric longitudinal vibrations with...
    3 KB (378 words) - 01:05, 3 February 2024
  • mechanism of the vibrational frequencies of odorants could be easily suppressed by quantum effects of nonodorant molecular vibrational modes. The authors...
    25 KB (2,859 words) - 12:35, 26 September 2023
  • Thumbnail for Raman spectroscopy
    although X-rays can also be used. The laser light interacts with molecular vibrations, phonons or other excitations in the system, resulting in the energy...
    84 KB (9,842 words) - 03:16, 14 August 2024
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    temperature by the infrared radiation. EMR in this range causes molecular vibration and heating effects, which is how these animals detect it. Above...
    51 KB (6,346 words) - 19:47, 20 September 2024
  • Thumbnail for Dielectric
    molecules are bent and stretched by the field and the molecular dipole moment changes. The molecular vibration frequency is roughly the inverse of the time it...
    37 KB (4,758 words) - 23:38, 13 August 2024
  • December 18, 2013. As his name suggests, Vibe's powers revolve around vibration, frequency, and resonance. His powers enabled him to create shock waves...
    19 KB (2,008 words) - 15:26, 29 August 2024
  • Thumbnail for Jacobi coordinates
    Jacobi coordinates (category Molecular vibration)
    ISBN 981-238-367-0. John Z. H. Zhang (1999). Theory and application of quantum molecular dynamics. World Scientific. p. 104. ISBN 981-02-3388-4. For example, see...
    5 KB (639 words) - 23:18, 8 February 2023
  • an intermediate as a compound that has a lifetime greater than a molecular vibration, is formed (directly or indirectly) from the reactants, and reacts...
    14 KB (1,828 words) - 17:06, 8 August 2024
  • Thumbnail for Melting point
    1016/S0022-328X(00)91037-4. Lindemann FA (1910). "The calculation of molecular vibration frequencies". Phys. Z. 11: 609–612. Sorkin, S., (2003), Point defects...
    27 KB (3,063 words) - 11:39, 10 September 2024
  • requires a change in molecular geometry, unimolecular rate constants cannot be larger than the frequency of a molecular vibration. Thus, in general, a...
    17 KB (2,392 words) - 03:06, 31 May 2024
  • Thumbnail for Lorentz oscillator model
    characteristic energy scales) for optical absorption, e.g. ionic and molecular vibrations, interband transitions (semiconductors), phonons, and collective...
    11 KB (1,516 words) - 03:28, 8 September 2024
  • of picoseconds. The creation and breaking of chemical bonds and molecular vibration happen in femtoseconds. Observing the motion of electrons happens...
    12 KB (1,142 words) - 11:54, 4 September 2024
  • Thumbnail for Spectral band
    the combination of many different spectral lines, resulting from molecular vibrational, rotational, and electronic transition. Spectroscopy studies spectral...
    4 KB (540 words) - 04:16, 21 August 2024