AUTHOR OF THIS BLOG

DR ANTHONY MELVIN CRASTO, WORLDDRUGTRACKER
Jul 272014
 

 

3 Butyl pyridine

Formula: C9H13N, 135.2062

IR 

IR spectrum

IH NMR

 

NMR spectrum

SEE

http://www.sigmaaldrich.com/spectra/fnmr/FNMR006274.PDF

 

 Unsaturation answer

C9H13N
Rule 3, omit the N and one H, gives C9H12
9 – 12/2 + 1 = 4 degrees of unsaturation.
Look for an aromatic ring.

IR interpretation

The bands at 3000-2850 indicate C-H alkane stretches. The band at 3028 indicates C-H aromatic stretch; aromatics also show bands in the regions 1600-1585 and 1500-1400 (C-C in-ring stretch), and 900-675 (C-H out-of-plane). The bands in the region 1250-1020 could be due to C-N stretch. The weak, broad banc at about 3500 could be amine N-H stretch or it could be a slight contamination of an impurity (water) in the sample.

 Structure answer

Structure answer
This is the structure. See if you can assign the peaks on your own.

NMR structure interpretation

NMR answer

 

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