• Thumbnail for Franck–Condon principle
    The FranckCondon principle describes the intensities of vibronic transitions, or the absorption or emission of a photon. It states that when a molecule...
    28 KB (3,503 words) - 12:55, 23 May 2025
  • Thumbnail for Edward Condon
    nuclear weapons as part of the Manhattan Project. The FranckCondon principle and the Slater–Condon rules are co-named after him. He was the fourth director...
    51 KB (5,382 words) - 21:16, 31 May 2025
  • Condon (Irish Condún) is a surname that originated in Ireland, and now most common in counties Cork, Limerick and Tipperary. The name is derived from the...
    3 KB (86 words) - 05:05, 23 May 2025
  • Thumbnail for James Franck
    atoms and molecules. In his own research, Franck developed what became known as the FranckCondon principle, a rule in spectroscopy and quantum chemistry...
    38 KB (4,270 words) - 17:08, 25 April 2025
  • The intensity of allowed vibronic transitions is governed by the FranckCondon principle. Vibronic spectroscopy may provide information, such as bond length...
    23 KB (3,040 words) - 11:27, 11 December 2024
  • Thumbnail for Atomic electron transition
    quantum jump has not been measured experimentally. However, the FranckCondon principle binds the upper limit of this parameter to the order of attoseconds...
    8 KB (868 words) - 21:29, 5 February 2025
  • Thumbnail for Ionization energy
    excitation. The intensity of such transitions is explained by the FranckCondon principle, which predicts that the most probable and intense transition corresponds...
    51 KB (5,840 words) - 13:23, 28 May 2025
  • Thumbnail for Jablonski diagram
    small spin-orbit coupling. ISC can be followed by phosphorescence. FranckCondon principle Grotrian diagram (for atoms) “Jablonski Diagram.” 2006. In IUPAC...
    4 KB (457 words) - 21:09, 29 May 2025
  • Thumbnail for Fluorescence
    proportion to their overlap with the ground state according to the Franck-Condon principle.: 31  These vibrational excited states typically decay rapidly...
    100 KB (11,053 words) - 14:43, 22 May 2025
  • Thumbnail for Absorption band
    consequences for radio communication in the V band 118 GHz peak FranckCondon principle Spectroscopy Spectral line Ning, Yong-Cheng (2011-04-18). "Interpretation...
    13 KB (1,532 words) - 08:12, 24 May 2025
  • Thumbnail for Heinrich Gerhard Kuhn
    of chlorine (Cl2) and bromine (Br2). His results confirmed the FranckCondon principle and formed his 1926 doctoral thesis on Absorptionspektrum und Dissoziationswarmen...
    9 KB (1,011 words) - 21:28, 2 September 2024
  • Thumbnail for Zero-phonon line and phonon sideband
    transition between the ground and the excited state is based on the FranckCondon principle, that the electronic transition is very fast compared with the...
    9 KB (1,163 words) - 15:29, 28 March 2022
  • solvent molecules are the same before and after the electron jump (FranckCondon principle). The jump of the electron is governed by quantum mechanical rules...
    40 KB (5,700 words) - 13:05, 22 December 2024
  • potential; furthermore, the low population of the higher states (or the FranckCondon principle) makes it difficult to experimentally obtain data at high values...
    2 KB (359 words) - 21:08, 17 May 2025
  • Thumbnail for Nitrogen laser
    be at least 3% inversion by electron impact is 10 to 1 due to FranckCondon principle energy lost in the lower laser level: 40% optical: More stimulated...
    19 KB (2,383 words) - 09:04, 19 March 2025
  • vibrating neutral molecules when neutralised according to the FranckCondon principle. H3 can break up in the following ways: H3 → H+3 + e− H3 → H +...
    18 KB (2,084 words) - 00:15, 19 May 2024
  • Thumbnail for Polaron
    V; Mishchenko AS; Perroni CA; et al. (2006). "Validity of the Franck-Condon Principle in the Optical Spectroscopy: Optical Conductivity of the Fröhlich...
    48 KB (5,761 words) - 18:29, 5 May 2025
  • Thumbnail for Deslandres table
    closely spaced lines. The intensity of the lines is governed by the FranckCondon principle. When a Deslandres table is filled correctly, the columns represent...
    2 KB (228 words) - 16:42, 11 May 2022
  • emission wavelength regime. The wavelength shift occurs due to the FranckCondon principle, while excess energy is usually carried away in form of phonons...
    8 KB (840 words) - 16:14, 23 May 2025
  • Advancement of Science. Edward Condon - Physicist and pioneer in quantum mechanics. The FranckCondon principle and the Slater–Condon rules are co-named after...
    96 KB (10,699 words) - 01:05, 15 May 2025
  • (quantum mechanics) Avoided crossing Born–Huang approximation FranckCondon principle Kohn anomaly Authors often justify this step by stating that "the...
    30 KB (5,064 words) - 09:43, 4 May 2025
  • corresponding to vibrational modes of the molecular cation (see FranckCondon principle). PES energies are different from ionisation energies which relates...
    39 KB (4,968 words) - 15:09, 25 May 2025
  • chemistry computer programs Adiabatic process (quantum mechanics) FranckCondon principle Born–Oppenheimer approximation GF method Eckart conditions Rigid...
    38 KB (5,204 words) - 22:36, 14 April 2025
  • elimination – Joseph Fourier and Theodore Motzkin FranckCondon principle – James Franck and Edward Uhler Condon Franssen effect – Nico Franssen Franz–Keldysh...
    72 KB (6,840 words) - 15:42, 10 April 2025
  • Thumbnail for March 1902
    Deckertown. Born: Edward Condon, American nuclear physicist for whom the FranckCondon principle of spectroscopy and the Slater–Condon rules of computational...
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  • Thumbnail for Photoredox catalysis
    barrier. The intrinsic barrier of electron transfer derives from the FranckCondon principle, stating that electronic transition takes place more quickly given...
    50 KB (6,257 words) - 13:22, 26 May 2025
  • Thumbnail for Triboracyclopropenyl
    spectral peaks from "vibrational progression" (according to the Franck-Condon principle) indicates how ionization at different energies changes specific...
    27 KB (3,022 words) - 20:39, 22 July 2024
  • Thumbnail for Kasha's rule
    independent of the excitation wavelength. The rule can be explained by the FranckCondon factors for vibronic transitions. For a given pair of energy levels...
    6 KB (633 words) - 16:44, 3 August 2024
  • Simon Francis Wheeler Loomis Francisco José Ynduráin Franck Report FranckCondon principle Franck–Hertz experiment Franco-British Nuclear Forum Franco...
    14 KB (1,545 words) - 17:52, 15 September 2024
  • Perroni, C. A.; Devreese, J. T. (6 April 2006). "Validity of the Franck-Condon Principle in the Optical Spectroscopy: Optical Conductivity of the Fröhlich...
    12 KB (1,365 words) - 02:00, 30 January 2024