विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| एटीआर-एफटीआईआर× | NOESY× | |
|---|---|---|
| क्षेत्र | स्पेक्ट्रोस्कोपी | स्पेक्ट्रोस्कोपी |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1961 | 1981 |
| प्रवर्तक≠ | Joop Fahrenfort | Richard Ernst |
| प्रकार≠ | Vibrational spectroscopy technique | Two-dimensional pulse sequence |
| मौलिक स्रोत≠ | Harrick, N. J. (1960). Study of physics of internal reflection from metals. Journal of Physics and Chemistry of Solids, 13(2), 143-155. link ↗ | Aue, W. P., Bartholdi, E., & Ernst, R. R. (1976). Two-dimensional spectroscopy. Application to nuclear magnetic resonance. The Journal of Chemical Physics, 64(5), 2229-2246. DOI ↗ |
| उपनाम | ATR-IR, attenuated total reflectance, FTIR spectroscopy | NOE spectroscopy, 2D NOESY, NOE NMR |
| संबंधित | 3 | 3 |
| सारांश≠ | Attenuated Total Reflectance (ATR) Fourier Transform Infrared (FTIR) spectroscopy is a variant of conventional FTIR that measures infrared absorption through evanescent-wave interrogation of samples in direct contact with a high-refractive-index crystal. Developed by Harrick and Fahrenfort in the 1960s, ATR-FTIR is now the dominant form of FTIR spectroscopy, enabling rapid, non-destructive characterization of organic compounds, polymers, coatings, and biological materials without extensive sample preparation. | Nuclear Overhauser Enhancement Spectroscopy (NOESY) is a 2D NMR technique that detects through-space dipolar coupling between protons, rather than through-bond scalar coupling. Introduced by Macura and Ernst in 1981, NOESY reveals which protons are spatially close in the three-dimensional structure, independent of bonding connectivity. This makes NOESY invaluable for determining molecular conformation, assigning stereochemistry, and elucidating protein folds. |
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