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Proton-enhanced NMR of dilute spins in solids
Abstract
The NMR signals of isotopically or chemically dilute nuclear spins S in solids can be enhanced by repeatedly transferring polarization from a more abundant species I of high abundance (usually protons) to which they are coupled. The gain in power sensitivity as compared with conventional observation of the rare spins approaches NII(I+1)γI2/NSS(S+1)γS2, or ∼ 103 for S = 13C, I = 1H in organic solids. The transfer of polarization is accomplished by any of a number of double resonance methods. High-frequency resolution of the S -spin signal is obtained by decoupling of the abundant spins. The experimental requirements of the technique are discussed and a brief comparison of its sensitivity with other procedures is made. Representative applications and experimental results are mentioned.
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Cited by
Elucidating the Structure of Poly(dopamine)
Dreyer, D. R., Miller, D. J., Freeman, B. D., Paul, D. R., & Bielawski, C. W. (2012) · Langmuir · doi:10.1021/la204831b · Cited by 1,086
Bechinger, B., Zasloff, M., & Opella, S. J. (1993) · Protein Science · doi:10.1002/pro.5560021208 · Cited by 357
Homonuclear radio frequency-driven recoupling in rotating solids
Bennett, A. E., Rienstra, C. M., Griffiths, J. M., Zhen, W., Lansbury, P. T., & Griffin, R. G. (1998) · The Journal of Chemical Physics · doi:10.1063/1.476420 · Cited by 353
Pérez García, M., Zhang, Y., Hayes, J., Salazar, A., Zabotina, O. A., & Hong, M. (2011) · Biochemistry · doi:10.1021/bi101795q · Cited by 353
The Fumed Silica Surface: A Study by NMR
Liu, C. C., & Maciel, G. E. (1996) · Journal of the American Chemical Society · doi:10.1021/ja954120w · Cited by 303
Metadata
- Authors
- Pines, A., Gibby, M. G., & Waugh, J. S.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1973-07-15
- Volume
- 59
- Issue
- 2
- Pages
- 569-590
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2003560901
- Cited by
- 2,493
- References
- 0
- FWCI
- 19.09
- Type
- journal article
- Language
- en
- Open access
- closed
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