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FTIR and NMR Spectra After completing a reaction and working up the products, it is still necessary to confirm that the correct product was formed. The most common tools used for this analysis are Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy. In the virtual laboratory, 'H and 13C NMR spectra are available. Details on interpreting FTIR and NMR spectra are found in your textbook. Your instructor may or may not ask you to perform this section depending on how your class is structured. 5. To collect an FTIR spectrum of your product, click on the FTIR spectrometer located to the right of the lab bench and drag the salt plate icon to the flask on the lab bench. A window containing the FTIR spectrum for your product should now open. Identify the relevant peaks in the FTIR spectrum and record the position and associated functional group for each below. The FTIR spectrum can also be saved to the lab book for later analysis. When entering values for the FTIR please enter them in order from left to right on the spectrum to ensure they match the grading rubric. Position (1) Functional Group 1 Position 2 Functional Group 2 Position 3 Functional Group 3 Position 4 Functional Group 4 Position 5 cm-1 cm-1 cm-1 cm -1 cm-1
7/6/22, 8:09 AM Functional Group 5 6. To collect a 'H NMR spectrum of your product, click on the NMR magnet and drag the NMR sample tube to the flask on the lab bench. A window containing the NMR spectrum for your product should now open. You can zoom into various portions of the NMR spectrum by clicking and dragging over the desired area. The Zoom Our button is used to zoom back out to view the full spectrum. Identify all of the peaks in the NMR spectrum and record the chemical shift, the splitting, and the number of hydrogens for each peak below. The NMR spectrum can also be saved to the lab book for later analysis. If necessary to confirm the structure of your product, you can measure the 13C NMR for the product and record the chemical shifts for the peaks. Mass spectrometry is also available if needed. Beyond Labz Assessment When entering values for the NMR please enter them in order from left to right on the spectrum to ensure they match the grading rubric. Peak (1) Chemical Shift Specify the multiplicity as a singlet (s), doublet (d), triplet (1), quartet (q), or multiplet (m). Peak (1) Od Om Oq Os Ot Specify the number of hydrogens associated with this peak. Peak (1) Peak (2) Chemical Shift
Specify the 04 04 Specify the number of hydrogens associated with this peak. Peak (2) Peak (3) Chemical Shift let (s), doublet (d), triplet (1) quartet (4), emulg Specify the multiplicity as a singlet (s), doublet (d), triplet (1), quartet (q), or multiplet (m). Peak (3) Os Ot Od Oq Om Specify the number of hydrogens associated with this peak. Peak (3) Peak (4) Chemical Shift
7/6/22, 8:09 AM Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (q), or multiplet (m). Peak (4) 04 Od Om Specify the number of hydrogens associated with this peak. Peak (4) Peak (5) Chemical Shift Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (q), or multiplet (m). Peak (5) Oq Os Od Om Ot Specify the number of hydrogens associated with this peak. Peak (5) 7. Do the FTIR and NMR spectra you measured and recorded above confirm that you synthesized the assigned target compound? Explain. https://worksheets beyondlabz.com/multiembedq.php?id=9522-9523-9524-9525-9526-9527-9528-9529-9530-9531-9532-9533-9534-9535-9536-9537-