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I was lecturing along today, teaching the basics of the theory and how to interpret Tanabe-Sunago diagrams, and I got to my slides where I show them how to calculate ∆o from Co(en)3, and it just fell apart. I had done V(III) as a first example, and then I wanted the students to practice the calculations, but my slides were not up to the task. I thought to myself, in the moment, this would be a good opportunity to do an in-class activity, I should write it. So, in the spirit of making next year easier, I did. I have not used this in class, but I wish I had had it this morning.
| Attachment | Size |
|---|---|
| in class activity in docx format | 76.03 KB |
| in class activity in pdf format | 86.9 KB |
students should be able to
a) calculate a molar absorptivity for a spectrum that has d-d transitions
b) determine if that is consistent with the assignment as a d-d transition
c) convert nm to wavenumber
d) extract the ∆o of the complex from the Tanabe-Sunago diagram
none
I have a set of powerpoint slides that introduce d-d, MLCT and LMCT in the UV-vis and then walk through how to extract ∆o from the diagrams. I wanted the students to then practice this skill in class.
Evaluation
I would have the students do this in class and then walk around and answer questions. This could also be used as a homework or exam question.
I haven't used this yet so I don't know.