Appendix A - Magnetic Active Nuclei
Appendix A - Magnetic Active Nuclei
The table below
[9]
contains some information about magnetic active nuclei
that are of special importance in NMR spectroscopy of biomolecules:
| isotope | spin I | natural abundance [%] | gyromagnetic ratio, (gamma) [107*rad/(T*s)] | relative sensitivity | absolute sensitivity |
| 1H | 1/2 | 99.98 | 26.7519 | 1.00 | 1.00 |
| 2H | 1 | 0.016 | 4.1066 | 9.65 · 10-6 | 1.45 · 10-6 |
| 12C | 0 | 98.9 | -- | -- | -- |
| 13C | 1/2 | 1.108 | 6.7283 | 1.59 · 10-2 | 1.76 · 10-4 |
| 14N | 1 | 99.63 | 1.9338 | 1.01 · 10-3 | 1.01 · 10-3 |
| 15N | 1/2 | 0.37 | -2.712 | 1.04 · 10-3 | 3.85 · 10-6 |
| 16O | 0 | 98.9 | -- | -- | -- |
| 17O | 5/2 | 0.037 | -3.6279 | 2.91 · 10-2 | 1.08 · 10-5 |
| 31P | 1/2 | 100 | 10.841 | 6.63 · 10-2 | 6.63 · 10-2 |
The relative sensitivity is given at constant magnetic field and equal
number of nuclei.
The absolute sensitivity is the product of relative sensitivity multiplied by natural abundance.
[Structure Calculation]
[Index]
[PPS2 Projects]
[Appendix B]