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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: ixi on April 26, 2008, 02:25:10 PM

Title: CH and CD stretch
Post by: ixi on April 26, 2008, 02:25:10 PM

Where does the CH stretch in chloroform occur?
Where does the CD stretch in deuterchloroform occur?


We used the FTIR for this experiment. The problem is the find the frequencies. To find the frequency I think the formula is 1/lambda. But where would I look to find out what lambda is?

Title: Re: CH and CD stretch
Post by: Alpha-Omega on April 26, 2008, 08:22:01 PM

This information is usually obtained from spectra libraries.  However, chloroform is one of those species that has this data available in most spectroscopy texts.

www.spectroscopynow.com is a huge knowledgebase for spectroscopy including  educational datbases that have this kind of information.

They have an educational link called the Infrared Spectroscopy Primer.

Try this link:

http://www.spectroscopynow.com/coi/cda/detail.cda?id=18427&type=EducationFeature&chId=2&page=1

In order to download any of their references you do have to establish an account (it is free).

Title: Re: CH and CD stretch
Post by: ixi on April 27, 2008, 10:30:02 AM

I tried that site and other sites with spectra libraries but couldn't find the information I was looking for.