قارن الطرق
راجع الطرق التي اخترتها جنبًا إلى جنب؛ الصفوف المختلفة مميَّزة.
| الرنين النووي المغناطيسي بالتعزيز النووي (NOESY)× | نبضة صدى الدوران في الرنين المغناطيسي النووي× | |
|---|---|---|
| المجال | علم الطيف | علم الطيف |
| العائلة | Process / pipeline | Process / pipeline |
| سنة النشأة≠ | 1981 | 1950 |
| صاحب الطريقة≠ | Richard Ernst | Erwin Hahn |
| النوع≠ | Two-dimensional pulse sequence | Spectroscopic pulse sequence |
| 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 ↗ | Hahn, E. L. (1950). Spin echoes. Physical Review, 80(4), 580-594. DOI ↗ |
| الأسماء البديلة≠ | NOE spectroscopy, 2D NOESY, NOE NMR | CPMG pulse sequence, spin-echo NMR |
| ذات صلة≠ | 3 | 4 |
| الملخص≠ | 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. | The spin-echo is a fundamental nuclear magnetic resonance (NMR) pulse sequence technique introduced by Erwin Hahn in 1950. It uses a 90-degree radiofrequency pulse followed by a 180-degree refocusing pulse to create an echo, effectively reversing the effects of magnetic field inhomogeneities and allowing accurate measurement of spin relaxation properties. This technique is essential in modern NMR spectroscopy for both one-dimensional and multidimensional experiments. |
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