Spectroscopy question on DAT...What do I need to remember?

[Cofo]

---

Members do not see this ad.

Does a table of information about IR, NMR frequencies appear on the computer screen during the DAT?

If not, then what frequencies/values, etc must I remember when spectroscopy questions come up?

 

[DQLEUCD]

Does a table of information about IR, NMR frequencies appear on the computer screen during the DAT?

If not, then what frequencies/values, etc must I remember when spectroscopy questions come up?

Know everything. You will need to be able to figure out which peak is which type of bond for IR and for NMR you will need to figure out the compound.

 

[casper22]

I am with you on this COFO... i hate this topic and my brain refuses to remember those values...

I hope to see some good advice in this thread..

 

[kkim85]

1700~1750 peak C=O bond

3100~3500 Broad peak C-OH

2900~3500 Broadest peak COOH (Double check it)

3100~3500 Sharp peak (Amine group I think.. Double check it)

If you know nothing else.. know these 4.......I only memorized these 4 and I was able to deduce the answer.

 

[LuckMC11]

1700~1750 peak C=O bond

3100~3500 Broad peak C-OH

2900~3500 Broadest peak COOH (Double check it)

3100~3500 Sharp peak (Amine group I think.. Double check it)

If you know nothing else.. know these 4.......I only memorized these 4 and I was able to deduce the answer.

thanks for this!!

 

[Kahr]

1700~1750 peak C=O bond

3100~3500 Broad peak C-OH

2900~3500 Broadest peak COOH (Double check it)

3100~3500 Sharp peak (Amine group I think.. Double check it)

If you know nothing else.. know these 4.......I only memorized these 4 and I was able to deduce the answer.

Awesome info 👍👍 bumped; if anyone has anything to add to this, all the better. I was sitting here pondering IR numbers, and feeling quite annoyed at the possibility of having to memorize all of them in prep for just 1 or 2 questions.

 

[wall1two]

amine has a double peak at thoes values (2 n-h) bond. looks like 2 little bumps at the end of the big peak. also know 2200 for cyano group and non symmetrical alkyne triple bond(or maybe if its is only terminal, ill have to check)