Spectrum simulator for Cr(III) complexes
spin-allowed transitions
SOLID LINES
4T1g(P) ← 4A2g Green
4T1g(F) ← 4A2g Blue
4T2g(F) ← 4A2g Red
spin-forbidden transitions
dotted lines
2T2g(D) ← 4A2g Purple
2T1g(H) ← 4A2g Dk green
2Eg(H) ← 4A2g Copper
2T2g(H) ← 4A2g Lt green
2A1g(G) ← 4A2g Grey
2T2g(G) ← 4A2g Brown
2T1g(G) ← 4A2g Orange
2E g(G) ← 4A2g Teal

If the lowest spin-allowed energy Peak 1 is at cm-1 and the ratio of the energies (ν2/ν1) is then
to find where this ratio falls on the Tanabe-Sugano diagram and get the predicted value of B' and the energy of the transitions.

Alternatively, enter Δ and B values

Or finally, choose a Chromium complex.

Initial output is:

From this a JCAMP-DX file can be created suitable for plotting with JSpecView
Copy and paste into a text editor and save as e.g. test.jdx.
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Copyright © 2003-2011 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 Dec 2003. Links checked and/or last modified 25th March 2011.
URL http://wwwchem.uwimona.edu.jm/courses/Tanabe-Sugano/TanSugd3.html