How would you interpret the IR spectrum of your product if it's peaks match the literature spectrum, but the signals are weak? Could the argument that the sample was very dilute and lots of water was in it work as a viable explanation?
What about in a scenario where the experimental IR spectrum has all necessary peaks but is missing a key peak in, for example, the 2000-3000 region?
I synthesized acetylglycine and am trying to see why I am missing a peak. For the purposes of this lab, it's not necessary to have absolute purity of compound but for my own curiousity, i'm trying to figure it out. I'm trying to consider all the physical reasons for why my IR may not match the literature, while my melting point ranges are sufficiently accurate, meaning my product shouldn't have too many impurities.
I believe a dimerization could have taken place where for example, a carboxylic acid terminal of one molecule hydrogen bonds with the carboxylic acid terminal of another. Carbonyl oxygen to hydroxyl group, hydroxyl to carbonyl oxygen. This could lead to a suppression of the hydroxyl (-OH) signal.