Ditto. NMR and IR values are relatively easy to memorize for the most commonly used groups. Make cards and you'll know them in a day. It's worth knowing b/c you may get a freestanding question or freestanding like question w/ a passage asking what the value is. These are such EASY questions that I would hate to miss them due to not memorizing them. Don't stress over them though b/c you're likely to only get one question on this if even any. Good luckjtank said:for IR, u should know carbonyl stretch (1600), OH stretch (~3200)..
for nmr, u should know how to read the graph and tell # of equivalent H.
Ok, this one probably varies by the person. I hope, or else I'm just weird. If I don't have to memorize something, I'll almost never memorize detail just randomly. Like the IR thing. If I know I'm always going to have access to charts, I'll never have it in memory unless I just work with it *way too often*.Economist said:If you've taken 2 semesters of orgo and/or orgo lab, you should have enough memorized already. You really only need the major functional groups for IR and proton NMR. And as a previous poster said, you should understand splitting.
nopejuniper456 said:TPR says to memorize the values of various IR and NMR spectra signals (for different functional groups, types of hydrogens, etc). is this really necessary? it seems like overkill to me. . .