UV-visible spectrum of a transition metal complex (d3 - d8) from internet . Assign the peaks and ...
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Transcript of UV-visible spectrum of a transition metal complex (d3 - d8) from internet . Assign the peaks and ...
Inorganic ChemistryFourth EditionPeter Atkins, Tina Overton, Jonathan Rourke, Mark Weller, and Fraser Armstrong848 pages | 1500 colour line drawings | 276x219mm978-0-19-926463-6 | Paperback | 26 January 2006Price: £39.99
1. Exercises on page 489
•19.15 to 19.23
2. Find a UV-visible spectrum of a transition metal complex (d3 - d8) from internet . Assign the peaks and using the appropriate Tanabe –Sugano diagram calculate for the complex.
ASSIGNMENT.
Assigning transitions(blue arrow reproduces observed transitions)
Cr(NH3)63+
Two allowed, one forbidden transition
21550cm-1
28500cm-1
Analysis of Tanabe Sugano -Using Ruler to find ratio
Get the Ratio of v2/v1=28500/215500=1.32
Now,using a ruler.Find a y value by moving the ruler along the x axis and find the ratio approximately at 1.32
4T2g
4T1g
Approximately 1.30 at 33.0
4T2g 4A2g
4T1g 4A2g
From the Tanabe –Sugano diagram
It’s mean that
32.8B=21550cm-1
So B=657cm-1
cm-1