- 95 535 90 85 2980 89 2627 96 2535 12 80 Transmittance 75 70 65 1409 48 1304 54 9546790 800 60 54 60 634 79 97 500 100 1 (29.77 KiB) Viewed 27 times
- 95 535 90 85 2980 89 2627 96 2535 12 80 Transmittance 75 70 65 1409 48 1304 54 9546790 800 60 54 60 634 79 97 500 100 2 (29.77 KiB) Viewed 27 times
- 95 535 90 85 2980 89 2627 96 2535 12 80 Transmittance 75 70 65 1409 48 1304 54 9546790 800 60 54 60 634 79 97 500 100 3 (58.78 KiB) Viewed 27 times
95 535 90 85 2980.89 2627.96 2535.12 80 %Transmittance 75 70 65 1409,48 1304.54 9546790 800.60 54 - 60 634.79 97 500 1000 1500 3000 4000 3500 2500 2000 Wavenumbers (cm-1) Regions: Title: 35 Number of sample scans: 8 Number of background scans: 8 Instrument Serial: BDM 2010534 Region 1: 3643.69-625.90 Threshold: 95.23 Sensitivity: 50.00 Danel of
IR Data Analysis Your IR spectrum will have many peaks labeled with numbers. You need only to pay attention to the major peaks AND those peaks that you would expect to find, based on your molecule. What you need to do: 1. Preparation: a. On the spectrum, clearly draw the compound structures. b. According to the instructions given in your lab manual on page 125 • Draw the baseline • Draw the intensity lines 2. Analysis a. Look at the Functional Group Region of your IR spectrum and identify the important peaks there. b. Look at your compound and determine which types of bonds are present, and then look for those stretches in your spectrum (For example, do you have a nitro group? A C-O bond?) c. Label all of these peaks on your spectrum with the type of bond as shown in the example below. Note: You should have at least two for each functional group for this lab. The bold text in the partial spectrum below shows how you should label your IR stretches. Transmittance (%) 2934.2 2998.6 CsprH stretch 17025 C=0 stretch