Topic: IR of amino acid (Read 5083 times)

HB · « **on:** January 28, 2014, 01:23:25 PM »

In IR of N-acyl amino acid, the NH and C=O of amide and acid appeared, while the OH didnot appeared can any one tell me the cause

Babcock_Hall · « **Reply #1 on:** January 28, 2014, 06:00:21 PM »

Where do you expect to see it?

HB · « **Reply #2 on:** January 29, 2014, 01:19:33 PM »

I am expecting to see it at 3500-2500 as broad band, but actually no band appeared at this range and only very sharp NH band appeared at 3300 cm-1

Babcock_Hall · « **Reply #3 on:** January 29, 2014, 02:25:09 PM »

I don't recall having seen a spectrum of an N-acylaminoacid before; therefore, I don't have any experiential help to offer. One trivial explanation of course is that the compound has an ester function at the carboxylic acid. Is this a commercially-produced material, or is it something that you made?

discodermolide · « **Reply #4 on:** January 29, 2014, 07:45:10 PM »

Quote from: HB on January 28, 2014, 01:23:25 PM

In IR of N-acyl amino acid, the NH and C=O of amide and acid appeared, while the OH didnot appeared can any one tell me the cause

What about the C=O of the acid, did you see that?
How did you make this compound?

HB · « **Reply #5 on:** January 30, 2014, 12:31:47 PM »

The C=O of the acid appeared at 1704 cm-1

discodermolide · « **Reply #6 on:** January 30, 2014, 01:40:52 PM »

How did you make this compound?

Topic: IR of amino acid (Read 5083 times)

HB

IR of amino acid

Babcock_Hall

Re: IR of amino acid

HB

Re: IR of amino acid

Babcock_Hall

Re: IR of amino acid

discodermolide

Re: IR of amino acid

HB

Re: IR of amino acid

discodermolide

Re: IR of amino acid

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