Proton spin relaxation spectrum of hydrogen gas at 77.5 K

1979 ◽  
Vol 57 (6) ◽  
pp. 841-844 ◽  
Author(s):  
Robin L. Armstrong ◽  
Wallace Kalechstein
Keyword(s):  
Spin Relaxation ◽  
Correlation Functions ◽  
Relaxation Spectrum ◽  
Hydrogen Gas ◽  
Proton Spin ◽  
Long Time Tails ◽  
Null Result ◽  
Relaxation Measurements ◽  
Long Time

The possibility of using proton spin relaxation measurements in hydrogen to detect the 'long time tails' of the associated correlation functions is discussed and an experiment described to look for such effects. A null result is obtained.

Detection of trace of impurities in some solids by proton spin-relaxation measurements

1996 ◽  
Vol 11 (3-4) ◽  
pp. 553-555 ◽  
Author(s):  
H. Kataoka ◽  
S. Takeda ◽  
N. Nakamura
Keyword(s):  
Spin Relaxation ◽  
Proton Spin ◽  
Relaxation Measurements

A Site-Specific Study of the Magnetic Field-Dependent Proton Spin Relaxation of an Iridium N-Heterocyclic Carbene Complex

2017 ◽  
Vol 231 (4) ◽  
Author(s):  
Andrey N. Pravdivtsev ◽  
Alexandra V. Yurkovskaya ◽  
Pavel A. Petrov ◽  
Konstantin L. Ivanov
Keyword(s):  
Spin Relaxation ◽  
Proton Spin ◽  
Relaxation Dispersion ◽  
Wide Field ◽  
Field Range ◽  
Carbene Complex ◽  
Relaxation Measurements ◽  
A Site ◽  
Nuclear Magnetic

AbstractWe report a study of proton spin relaxation of an Iridium N-heterocyclic carbene complex [Ir(COD)(IMes)Cl] complex (where COD=1,5-cyclooctadiene, Imes=1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene). This compound is a pre-catalyst of the most efficient complex allowing the signal amplification by reversible exchange (SABRE) effect, relevant for enhancing weak signals in nuclear magnetic resonance (NMR). An important feature of the study is a combination of relaxation measurements over a wide field range with high-resolution NMR detection. As a result, we are able to measure nuclear magnetic relaxation dispersion (NMRD) curves in the field range 0.1 mT–16.4 T (corresponding to the frequency range 4 kHz–700 MHz) for individual protons in the complex under study. This attractive possibility enables determination of the motional correlation times,

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