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While reading up on Tanabe-Sugano diagrams I noticed that many diagrams spread over the internet that all seem to come from this Wikipedia article: https://en.wikipedia.org/wiki/Tanabe–Sugano_diagram. Those graphs are all derived from this data: http://wwwchem.uwimona.edu.jm/courses/Tanabe-Sugano/TSspread.html

When I myself create the same graph from the same raw data the x-axis is not the same in regards to scale. My question is, since the creator of the Wikipedia graph left no further documentation, what step am I missing?

d8 graph comparison of wiki version and raw data version

Oscar105
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The step that was missing was basically just human error in the creating of the graph (wrong column for x) on top of a 10Dq/B to Dq/B conversion. The Wikipedia graph was correct and the raw data was correct, the creator of the graph on the right (me) made a mistake. My bad.

Oscar105
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    I'm still a bit skeptical. To me, your plots make more sense; at least they are coherent with what one typically finds in literature (e.g. Atkins' Inorganic Chemistry). – andselisk Jan 28 '21 at 13:26
  • The raw data used 10Dq/B while the wikipedia one used Dq/B. 10Dq/B is more in line with the literature you linked to. That bit is down to a factor 10 difference, and is more personal preference from what I understand. Compare that with the faulty graph that is off by a factor 17 instead and then my error is easier to see. – Oscar105 Jan 28 '21 at 13:49