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| Identification par spectroscopie infrarouge× | Analyse de la symétrie moléculaire× | |
|---|---|---|
| Domaine | Chimie | Chimie |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1800 | 1960s |
| Auteur d'origine≠ | William Herschel | F. Albert Cotton |
| Type≠ | Spectroscopic characterization technique | Mathematical framework |
| Source fondatrice≠ | Pavia, D. L., Lampman, G. M., Kriz, G. S., & Engel, R. G. (2014). A Small-Scale Approach to Organic Laboratory Techniques (4th ed.). Cengage Learning. ISBN: 978-1285749297 | Cotton, F. A. (1990). Chemical Applications of Group Theory (3rd ed.). John Wiley & Sons. ISBN: 978-0471510949 |
| Alias | IR spectroscopy, FTIR, infrared spectroscopy | point group analysis, symmetry operations, group theory |
| Apparentées | 3 | 3 |
| Résumé≠ | Infrared (IR) spectroscopy measures the absorption of infrared radiation by chemical bonds, creating a spectrum unique to each compound. Discovered by William Herschel in 1800 and developed into a practical analytical tool in the mid-20th century, IR spectroscopy is indispensable for rapidly identifying functional groups and confirming compound structure in organic and inorganic chemistry. | Molecular symmetry analysis is the systematic application of group theory to understand the structure, bonding, spectroscopy, and reactivity of molecules. Developed comprehensively by F. Albert Cotton and others from the 1960s onward, this framework uses the mathematical properties of molecular symmetry to predict allowed electronic transitions, molecular orbital shapes, vibrational modes, and reaction pathways. |
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