d3 Tanabe-Sugano diagram
A Tanabe-Sugano diagram of the spin-allowed and low-lying spin-forbidden transitions
for octahedral d3 and tetrahedral d7 complexes is given below.
Select the region of interest then click on the curve to get
your parameters. See the instructions
for more information.
For the d3 case, the ground term is
4A2g which is plotted along the X-axis. The
first spin-allowed transition is to the 4T2g
level which is the red line. The second spin-allowed transition is
to the 4T1g level (drawn in blue) and the third
transition is to the 4T1g(P) level (drawn in green).
For the tetrahedral d7 case, the transitions are expected at much
smaller values of D/B since
Dtet ~ 4/9
Doct.
(The subscript g's should be dropped as well.)
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Copyright © 2003 by Robert John
Lancashire, all rights reserved.
Created and maintained by Prof. Robert J.
Lancashire,
The Department of Chemistry, University of the West Indies,
Mona Campus, Kingston 7, Jamaica.
Created Feb 1999. Links checked and/or last modified
9th December 2003.
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http://wwwchem.uwimona.edu.jm/courses/Tanabe-Sugano/TanSugd3o.html