Accurately and Quickly Interpreting NMR/IR Spectra

AI Thread Summary
The discussion centers on the interpretation of IR and NMR spectra to confirm the synthesis of n-bromobutane (1-bromobutane). The user identified peaks corresponding to CH2 groups and a methyl group in the IR spectrum, suggesting successful synthesis. The use of CDCl3 as the solvent is noted, with advice to set its peak to 0 for accurate comparison. Concerns about the chemical shifts in the NMR spectrum are acknowledged, but it is clarified that shifts do not invalidate the interpretation. Overall, the user feels more confident in their analysis after receiving feedback, and the IR spectrum appears consistent with reference data for 1-bromobutane.
biochem850
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In examining the IR spectrum, I noted that there were peaks for CH2-x where x is bromine, methylene (2 peaks) and a peak corresponding to a methyl group; I concluded that I've synthesized n-bromobutane. Is the method I used to interpret my spectra sound? *CDCl3 was the IR solvent

In addition, in looking at the HNMR spectra, I concluded that the protons shown in the NMR spectra corresponded to the groups determined in the IR spectra. My only concern is that the approximate ppm(s) seem to be shifted yet I know that this may not necessarily mean that my interpretation is wrong. Can someone confirm that my logic is sound and supported?

I've attached the NMR and the IR. http://i42.photobucket.com/albums/e309/Alex_Jsoh/IRSpectrum-page-001_zps084bb818.jpg

http://i42.photobucket.com/albums/e309/Alex_Jsoh/NMRSpectrum-page-001_zpsdd2a7edc.jpg

Thanks!
 
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What is n-bromobutane?
 
I'm sorry, 1-bromobutane (or n-butyl bromide).
 
Is the rightmost small peak CDCL3? Maybe you should set it to 0?
If so then it works well with the 1-bromobutane.
 
Can't really see your IR spectrum very clearly, but it does look similar to the reference IR spectrum for 1-bromobutane.
n-bromobutane.gif
 
Yeah, someone else did the IR/NMR for me.

The smallest peak is CDCl3 and it seems that setting it to 0 is prudent.

I did some thorough review of NMR/IR and I'm pretty confident now!

Thanks guys!
 

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