Analyze the spectra and summarize the data from each by producing a table, and d
ID: 103701 • Letter: A
Question
Analyze the spectra and summarize the data from each by producing a table, and determine the structure of the product.
The table for the IR spectrum should have heading including frequency/wavenumbers, bond responsible, and mode of vibration.
The table for NMR should include chemical shift ( value), the splitting, the number of neighbors, the integration, and the assignment of the specific protons responsible for the absorptions.
130 120 100 %T 80 60 4000 3000 2000 1000 600 Wavenumber [cm-1] Result of Peak Picking No. Position Intensity No. Position Intensity 1 806.581 70.7642 2 865.882 72.7775 3 1254.47 64.3907 51589.06 82.0121 6 1618.47 88.4527 7 2956.82 74.5234 8 3365.17 88.5031 [Comment] Sample Name Comment User Division Company 4 1416.94 67.6706 Santa Rosa Junior College [Measurement Information] Model Name Serial Number B047961016 FT/IR-4100typeA Standard TGS 16 2 cm-1 Light Source Detector Accumulation Resolution Zero Filling Apodization Gain Aperture Scanning Speed Filter Cosine Auto (128) Auto (5 mm) Auto (2 mm/sec) Auto (30000 Hz)Explanation / Answer
IR spectra:
Hence the structure of the compound based on IR spectra is p-cymene.
NMR spectra:
Hence the structure of the compound based on NMR spectra is p-cymene.
S.No. Frequency cm-1 Type of bond involved Mode of vibration Conclusion 1. 806.581 C-H C-H, out of plane Typical of p-disubstituted benzene ring 2. 865.882 C-H C-H, out of plane Typical of p-disubstituted benzene ring 3. 1254.47 C-H stretching Typical of tertiary butyl group 4. 1416.94 C=C stretching Typical of aromatic 5. 1589.06 C=C stretching Typical of aromatic 6. 1618.47 C-C multiple bond stretching -C-(CH3)2 7. 2956.82 C-H stretching Typical of -CH3 group 8. 3365.17 C-H stretching Typical of -CH3 group and aromatic