قارن الطرق
راجع الطرق التي اخترتها جنبًا إلى جنب؛ الصفوف المختلفة مميَّزة.
| COSY× | مطيافية الأشعة تحت الحمراء ذات الانعكاس الكلي الموهن (ATR-FTIR)× | |
|---|---|---|
| المجال | علم الطيف | علم الطيف |
| العائلة | Process / pipeline | Process / pipeline |
| سنة النشأة≠ | 1976 | 1961 |
| صاحب الطريقة≠ | Wüthrich Kurt | Joop Fahrenfort |
| النوع≠ | Two-dimensional pulse sequence | Vibrational spectroscopy technique |
| المصدر التأسيسي≠ | 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 ↗ | Harrick, N. J. (1960). Study of physics of internal reflection from metals. Journal of Physics and Chemistry of Solids, 13(2), 143-155. link ↗ |
| الأسماء البديلة | COSY NMR, 2D COSY, 1H-1H COSY | ATR-IR, attenuated total reflectance, FTIR spectroscopy |
| ذات صلة≠ | 4 | 3 |
| الملخص≠ | Correlation Spectroscopy (COSY) is a two-dimensional NMR technique that correlates proton chemical shifts through scalar coupling (J-coupling), revealing which protons are magnetically coupled and hence bonded through multiple bonds. Developed by Aue, Bartholdi, and Ernst in 1976, COSY became one of the most important tools in structural elucidation, enabling chemists to map out proton connectivity patterns and deduce molecular topology without isotopic labeling. | 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. |
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