1. Locate a spectrum of a known compound.
| Use the sources listed in the "Major Sources for Spectra", e.g., Aldrich, Sadtler, Hershenson, etc. |
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2. Indentify a compound from its spectrum.
| a. | Make preliminary assignments of the compound's structure based on information learned in class. |
| NMR: look for presence/absence of aromatic ring (8 6.7-9); methyl (usually near 8 1); alkene H (usually 8 5-7), etc. |
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| IR: certain peaks are characteristic of specific structure, e.g., frequency of carbonyl stretch, presence/absence if OH or NH, of triple bonds, etc. |
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| b. | Extend and confirm your preliminary assignments and assign other diagnostic peaks by consulting your lab text and Silverstein/Bassler Morrill, Spectrometric Identification of Organic Compounds). (on reserve) and Pavia, Introduction to Organic Laboratory Techniques (on reserve). |
| c. | Decide on list of possible structures (may be partial structures or model structures): Look in sources listed in the "Major Sources for Spectra" guide for the spectra of possible compounds/structures. |
| d. | Indentify correct compound from check of spectra sources. |
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