Hi all
I am looking for information about the electromagnetic vibration frequencies of individual elements and molecules, and how these are calculated.
Any information about what this would be called (if it has a name) and references to any websites (college level) and/or books would be appreciated.
Many thanks in advance,
JJ
JJ wrote in news:58f58952-81e5-4f16-bcde- snipped-for-privacy@w36g2000vbi.googlegroups.com:
There are levels of detail. This will get you started
Molecules can have normal and rotational modes of oscillation, and the description of such systems is covered very well in classical mechanics textbooks. Eg, the chapter discussing oscillations in Goldstein's "Classical Mechanics".
I suggest starting there so you get a feel for what is going on.
Hi Eric,
thank you for your reply. How can it be determined whether the discussion is about vibrations due to heat or vibrations due to electromagnetic properties?
Thanks again
[[Mod. note -- At some level it doesn't matter -- a molecule's normal modes (whether classical or quantum-mechanical) are defined independently of how they're excited.-- jt]]
Note that not all interaction, connected to particular EM frequency, is related to vibration.
Vibration of molecules ( atom do not vibrate ) is mechanical, even if related to EM force. vibration modes of molecules are modified by rotation modes, giving complicated set of frequencies able to interact with.
Vibrations/rotations can change their state by emitting or absorbing EM radiation of their vibration frequency ( or close to it ).
You are putting your foots into deep waters of infrared spectroscopy.
Consider if it is still "within your league". I am afraid If you ask this way, you can get drowned.
Have something to add? Share your thoughts — no account required.
Ask the community — no account required