CHEMISTRY

Interpretations and Questions Concerning this Synthesis Interpretation of IR (Infrared Spectrometry) By running an infrared spectrometry (IR) important information about the particular functional groups of a compound is obtained. This allows for the naming of an unknown compound by analyzing the different functional groups that makes up the specific compound. The regions in which the functional groups appear fall between 4000-1300 cm-1 on the spectra. Since the compound I attempted to synthesize was an ester, the first thing I looked for on my spectra was a strong peak between 1800-1700 cm-1. My spectra did indeed have a strong peak at 1718.6 cm-1 so I concluded that the functional group ester was present in my compound. The, part of the compound is represented by a peak at cm-1 on the spectra that I ran. The that is located on the end of my compound shows up in the spectra by the peaks that occur between cm-1. After analyzing the spectra that I ran on my compound, I compared the IR results to the one in Sadtler. Since they were the same, I was able to confirm that the compound I synthesized was indeed isopentyl acetate. Interpretation of NMR (Nuclear Magnetic Resonance Spectrometry) The significance or running a nuclear magnetic resonance spectrometry (NMR) Is that this test gives useful information that leads to the ability to determine where the H+ are located in the compound. In isopentyl acetate there are 4 different arrangements of the H+ that add up to all 10 H+ which make up the compound. The three H+ located on the ester part of the molecule is seen in my NMR by the single peak between 3.7-4.1 ppm. This peak is single because it isn¡¯t involved in any spin-spin interactions that cause splitting. The two separate H+ that are involved in the are recognizable in my spectra as the two single peaks seen between ppm.