November 16, 2010 - 3:33pm

#1
Marco Zimmer-De Iuliis, University of Toronto

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Last seen: 9 years 3 months ago

Joined: 11/16/2010 - 3:28pm

## Good resource for Teaching IR with Symmetry Elements

Hello all,

I am teaching a thrid year inorganic course and want to teach some IR basic using symmetry and character tables.

I would like to go over generating Reducible representations and then use the reduction formula based on the character table to get to the irreducible representation.

I am using Housecroft and Sharpe's Inorganic Chemistry Text book, 3rd edition and they do cover this topic a little bit, biut I was wondering if anyone knows of other more comprehensive resources with further examples and explanations.

Thanks.

Miessler and Tarr (4th ed, section 4.4) has a fairly extensive presentation of IR using reducible reps for molecular motion, and also specifically for carbonyl stretching bands.

VIPEr has a few learning objects on IR. Some that i've used/looked at include:

https://www.ionicviper.org/class-activity/ir-spectroscopy-rhodium-carbon...

https://www.ionicviper.org/problem-set/ir-spectroscopy-metal-oxopentahal...

I have a handout on IR that I was thinking about putting on VIPEr but it contains almost exactly the same content and examples as the book section I reference above.

I hope that helps,

Adam

Thanks all for the suggestions.

I have put in a request for " Molecular Symmetry and Group Theory by Robert Carter" from our librarybut we only have the third edition of "Inorganic Chemistry by Miessler and Tarr".

Do you know if there is a similar section in the 3rd edition?

Yep. It hasn't changed all that much over the years.

I used to use Miessler and Tarr but my students didn't like it much. I switched to Housecroft and Sharpe. However, I still go back to M&T and use their approach to Group Theory. Most books use the approach 'here are point groups, here are what character tables look like, somewhere a miracle happens, and look at what we can do with group theory.' I really like the way that M&T go through the whole thing piece by little piece.

I've also found the following sites to be useful...

http://symmetry.jacobs-university.de/

Just click on a point group, type in your reducible rep and presto, it give you the irred. rep. It will even tell you which ones are IR and Raman active.

http://symmetry.otterbein.edu/

The gallary is fun to play with especially seeing some of those improper rotations.

http://jchemed.chem.wisc.edu/JCEDLib/WebWare/collection/reviewed/JCE2005...

Similar to the otterbein site. Unfortunately the last two sites don't really do anything with IR/Raman, but they can be useful for students to visualize symmetry ops.

I've also used Miessler & Tarr to cover this topic. I was only at the 3rd edition last time I taught inorganic.

I'm excited to look into the other resources people have mentioned.