IR Spectrum of Benzophenone and Triphenylmethanol I have partly labeled these tw

Question

IR Spectrum of Benzophenone and Triphenylmethanol

I have partly labeled these two IR spectrums but need help making sure I did it correct and if I need to label any other important peaks corresponding to the structures. See underneath each picture for the labeled peaks and if they are correct/if I should label any others.

Benzophenone:

C-H stretch (aromatics) at around 3000-3100?

C=O strecth (ketone) at around 1700?

Any others that I missed that are important for me to label?

Triphenylmethanol:

O-H stretch at around 3400-3500?

C-H strecth (aromatics) at around 3000-3100?

Any others that I missed that are important for me to label?

Explanation / Answer

In benzophenone :

characteristic signal is shown of aryl C-H streching and C=O streching which you have clearly depicted.

In triphenylmethyl benzene :

you have clearly depicted the characteristic peaks; O-H broad streching and aryl C-H streching. Also there is a lack of C=O streching in it which is clearly depicted in spectra.

So. your answers are correct.

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