Hi, It will be on Spectroscopy such as IR , NMR. You will have to interpretation of
spectral data...

Question

Hi, It will be on Spectroscopy such as IR , NMR. You will have to interpretation of 
spectral data in details and have to make a Data Table.Thanks..

Robert · Accepted Answer

a. diphenylmethanol 
IR Spectrum Interpretation 
Assignment of different peaks 
No Peak (wave number) cm-1 Assignment 
1 3330 broad -OH group of the alcohol 
2 3100 (sharp) Aromatic  C-H stretching 
3 1500 (sharp) Aromatic C=C bending 
4 2900 (sharp) Alkyl C-H stretching 
5 700 (sharp) Aromatic C-H bending
NMR Spectrum Interpretation 
No Chemical shift Assignment 
1 δ= 7.4 ppm Due to aromatic protons. There are 10 aromatic proton 
s in the two phenyl rings and they both are equivalent 
hence give the a single peak of highest intensity. 
 
2 δ= 5.7 ppm Due to the presence of the proton of alcohol –OH. I t is 
present as a doublet in the high resolution spectra and 
it may be due to the  coupling with the adjacent C-H 
protons. 
 
3 δ= 2.4 ppm Due to the presence of the proton at C-H.

Hi, It will be on Spectroscopy such as IR , NMR. You will have to interpretation of spectral data in details and have to make a Data Table. Thanks..

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