11B Nuclear Spin–Electron Spin Interactions in 11B MAS NMR Spectra of Paramagnetic Metal Borohydrides

2020 ◽  
Author(s):  
Jørgen Skibsted ◽  
SeyedHosein Payandeh ◽  
Morten B. Ley ◽  
Torben R. Jensen
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Spin Interactions ◽  
Paramagnetic Metal

Nuclear spin coupling effects in phosphorus-31 MAS NMR spectra of solid bis(triphenylphosphine)(phenylcyanamido)copper(I) complexes

1992 ◽  
Vol 96 (19) ◽  
pp. 7560-7567 ◽  
Author(s):  
John V. Hanna ◽  
Mark E. Smith ◽  
S. N. Stuart ◽  
Peter C. Healy
Keyword(s):  
Nuclear Spin ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Spin Coupling ◽  
Coupling Effects

scholarly journals Effect of electron-nuclear spin interactions for electron-spin qubits localized in InGaAs self-assembled quantum dots

2005 ◽  
Vol 97 (4) ◽  
pp. 043706 ◽  
Author(s):  
Seungwon Lee ◽  
Paul von Allmen ◽  
Fabiano Oyafuso ◽  
Gerhard Klimeck ◽  
K. Birgitta Whaley
Keyword(s):  
Quantum Dots ◽  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Qubits ◽  
Spin Interactions ◽  
Self Assembled

EPR, NMR, and Thermodynamic Evidences for Forced Nuclear Spin–Electron Spin Interactions in the Case of 1-Phenyl-2-Methylpropyl-1,1-Dimethyl-2-Nitroxide (TIPNO) Attached to Permethylated β-Cyclodextrin

2009 ◽  
Vol 36 (2-4) ◽  
pp. 181-194 ◽  
Author(s):  
Elena G. Bagryanskaya ◽  
David Bardelang ◽  
Sandrine Chenesseau ◽  
Jean-Pierre Finet ◽  
Laszlo Jicsinszky ◽  
...  
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Interactions

Electron-spin/nuclear-spin interactions and NMR in semiconductors

2009 ◽  
Vol 24 (2) ◽  
pp. 023001 ◽  
Author(s):  
Y Hirayama ◽  
G Yusa ◽  
K Hashimoto ◽  
N Kumada ◽  
T Ota ◽  
...  
Keyword(s):  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Interactions

scholarly journals Structure determination of membrane proteins by NMR spectroscopy

2002 ◽  
Vol 80 (5) ◽  
pp. 597-604 ◽  
Author(s):  
S J Opella ◽  
A Nevzorov ◽  
M F Mesleh ◽  
F M Marassi
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Shift ◽  
Membrane Proteins ◽  
Structure Determination ◽  
Nuclear Spin ◽  
Nmr Spectra ◽  
Dipolar Couplings ◽  
Solution Nmr ◽  
Two Dimensional ◽  
Spin Interactions

Current strategies for determining the structures of membrane proteins in lipid environments by NMR spectroscopy rely on the anisotropy of nuclear spin interactions, which are experimentally accessible through experiments performed on weakly and completely aligned samples. Importantly, the anisotropy of nuclear spin interactions results in a mapping of structure to the resonance frequencies and splittings observed in NMR spectra. Distinctive wheel-like patterns are observed in two-dimensional 1H–15N heteronuclear dipolar/15N chemical shift PISEMA (polarization inversion spin-exchange at the magic angle) spectra of helical membrane proteins in highly aligned lipid bilayer samples. One-dimensional dipolar waves are an extension of two-dimensional PISA (polarity index slant angle) wheels that map protein structures in NMR spectra of both weakly and completely aligned samples. Dipolar waves describe the periodic wave-like variations of the magnitudes of the heteronuclear dipolar couplings as a function of residue number in the absence of chemical shift effects. Since weakly aligned samples of proteins display these same effects, primarily as residual dipolar couplings, in solution NMR spectra, this represents a convergence of solid-state and solution NMR approaches to structure determination.Key words: NMR spectroscopy, protein structure, dipolar couplings, membrane proteins, structure determination.

Comments on Paper by A. Manoogian: Interpretation of Ti3+ Electron Spin Resonance Spectra in Alums

1972 ◽  
Vol 50 (18) ◽  
pp. 2232-2234 ◽  
Author(s):  
Gerald F. Dionne
Keyword(s):  
Electron Spin Resonance ◽  
Experimental Evidence ◽  
Physical Model ◽  
Electron Spin ◽  
Nuclear Spin ◽  
Natural Abundance ◽  
Superhyperfine Structure ◽  
Spin Interactions ◽  
Spin Resonance ◽  
Nuclear Magnetic

The argument that Ti3+ ions produce 12 magnetic complexes when substituted for Al3+ in CsAl (SO4)2∙12H2O (Cs alum) is supported neither by experimental evidence nor a realistic physical model. The uniform intensity of the superhyperfine structure in Rb(TiAl) alum disproves the idea that titanium nuclei are involved because the natural abundance of nuclear magnetic isotopes is only 13%. In addition, the magnitudes of the splittings are too small to represent electron–nuclear spin interactions within the Ti3+ ions.

scholarly journals Sensitivity gains, linearity, and spectral reproducibility in nonuniformly sampled multidimensional MAS NMR spectra of high dynamic range

2014 ◽  
Vol 59 (2) ◽  
pp. 57-73 ◽  
Author(s):  
Christopher L. Suiter ◽  
Sivakumar Paramasivam ◽  
Guangjin Hou ◽  
Shangjin Sun ◽  
David Rice ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Mas Nmr ◽  
High Dynamic
Sign in / Sign up

Export Citation Format

Share Document