When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Jahn–Teller effect - Wikipedia

    en.wikipedia.org/wiki/JahnTeller_effect

    The JahnTeller effect (JT effect or JTE) is an important mechanism of spontaneous symmetry breaking in molecular and solid-state systems which has far-reaching consequences in different fields, and is responsible for a variety of phenomena in spectroscopy, stereochemistry, crystal chemistry, molecular and solid-state physics, and materials science.

  3. Second-order Jahn-Teller distortion in main-group element ...

    en.wikipedia.org/wiki/Second-order_Jahn-Teller...

    Second-order Jahn-Teller distortion provides a rigorous and first-principles approach to the distortion problem. The interactions between the HOMOs and LUMOs to afford a new set of molecular orbitals is an example of second-order Jahn-Teller distortion.

  4. Crystal field theory - Wikipedia

    en.wikipedia.org/wiki/Crystal_field_theory

    The lower energy orbitals will be d z 2 and d x 2-y 2, and the higher energy orbitals will be d xy, d xz and d yz - opposite to the octahedral case. Furthermore, since the ligand electrons in tetrahedral symmetry are not oriented directly towards the d-orbitals, the energy splitting will be lower than in the octahedral case.

  5. Pseudo Jahn–Teller effect - Wikipedia

    en.wikipedia.org/wiki/Pseudo_JahnTeller_effect

    In their early 1957 paper on what is now called pseudo JahnTeller effect (PJTE), Öpik and Pryce [2] showed that a small splitting of the degenerate electronic term does not necessarily remove the instability and distortion of a polyatomic system induced by the JahnTeller effect (JTE), provided that the splitting is sufficiently small (the two split states remain "pseudo degenerate ...

  6. Octahedral molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Octahedral_molecular_geometry

    The term can also refer to octahedral influenced by the JahnTeller effect, which is a common phenomenon encountered in coordination chemistry. This reduces the symmetry of the molecule from O h to D 4h and is known as a tetragonal distortion.

  7. o o o s. c: o thO 00 - images.huffingtonpost.com

    images.huffingtonpost.com/2008-10-06-82107KGB...

    o o o s. c: o thO 00 . Created Date: 9/20/2007 3:37:18 PM

  8. Tanabe–Sugano diagram - Wikipedia

    en.wikipedia.org/wiki/Tanabe–Sugano_diagram

    The prominent shoulder in this absorption band is due to a JahnTeller distortion which removes the degeneracy of the two 2 E g states. However, since these two transitions overlap in a UV-vis spectrum, this transition from 2 T 2g to 2 E g does not require a Tanabe–Sugano diagram.

  9. Talk:Jahn–Teller effect - Wikipedia

    en.wikipedia.org/wiki/Talk:JahnTeller_effect

    the Jahn-Teller effect is a pretty advanced topic in chemistry and a reader would really benefit from some groundwork, octahedral complex would be preferable over octahedral complex. See also the AXE method, most molecular geometries are still missing. V8rik 20:07, 12 July 2005 (UTC)