July 04, 2022, 10:44:28 AM
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Topic: Factor Group Analysis?  (Read 3494 times)

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qcan375

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Factor Group Analysis?
« on: March 12, 2006, 04:44:55 PM »
I have a question regarding factor group analysis (FGA).

How does one know when to include the rotational and translational and acoustic external modes for a molecule and when not to include them when trying to determine the IR and Raman vibrational modes for a crystalline structure.

I have seen the above analysis used for different molecules with different FGA.

Really appreciate it if anyone shed some light on this.

 :)

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