Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Bonding force of an optical electron and the nucleus of ion Cr3+

  1. Oct 1, 2009 #1
    Does anybody know how to find bonding force of an optical electron and the nucleus of ion Cr3+ (in pink ruby during normal and excited states (excitement of light))?

    And also how to find the magnetic moment of the same electron during EPR (during excitement by a radiowave)? Condition of the resonance is: Intensity = 3.6 kGs and Frequency = 9.4 GHz (in normal and excited states).

    Thanks for any suggestions!
     
  2. jcsd
  3. Oct 2, 2009 #2

    alxm

    User Avatar
    Science Advisor

    The http://physics.nist.gov/PhysRefData/ASD/index.html" [Broken].
     
    Last edited by a moderator: May 4, 2017
  4. Oct 2, 2009 #3
    Thanks for the link alxm. Can you give a clue how to find this value in the database? I'm not a physicist...
     
  5. Oct 2, 2009 #4

    alxm

    User Avatar
    Science Advisor

    Well you enter "Cr III" and you get your spectral lines, or levels, depending on which database you look in. I believe it has relative g-factors as well.

    The magnetic moment is always the same ([tex]\mu_B[/tex]), it's the http://en.wikipedia.org/wiki/Landé_g-factor" [Broken] that differs between levels/atoms. Given your g-factor, field strength and frequency, you have:
    [tex]h\nu = g_\mathrm{e} \mu_B B_\mathrm{eff} = g_\mathrm{e} \mu_B B_0 (1 - \sigma)[/tex]

    Where [tex]B_{eff}[/tex] is the effective field, since the atom's environment (chemical bonds, if it's in a molecule, etc) is going to influence the field, which you can also express with the number [tex]\sigma[/tex]. (If it didn't change with environment, EPR wouldn't be much use in analyzing chemical structure)

    You might have to look into the literature to find relevant values for your g-factors, etc.
     
    Last edited by a moderator: May 4, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Bonding force of an optical electron and the nucleus of ion Cr3+
Loading...