Nuclear magnetic spin-lattice relaxation times of phosphorus-31 in some organic and inorganic compounds

1971 ◽  
Vol 75 (23) ◽  
pp. 3537-3546 ◽  
Author(s):  
Stephen W. Dale ◽  
Marcus E. Hobbs
Keyword(s):  
Inorganic Compounds ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Magnetic Spin ◽  
Nuclear Magnetic

Nuclear Magnetic Resonance Studies of Molecular Motion in Natural Rubber

1963 ◽  
Vol 36 (2) ◽  
pp. 318-324
Author(s):  
W. P. Slichter ◽  
D. D. Davis
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Natural Rubber ◽  
Molecular Motion ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Nmr Studies ◽  
Spin Lattice ◽  
Nuclear Magnetic

Abstract Nuclear magnetic resonance measurements have been made on natural rubber to examine how frequency, temperature, and crystallinity affect the nuclear relaxation. Moecular motions were studied by observing NMR linewidths and spin-lattice relaxation times at temperatures between −100° and 100° C, and at radio frequencies between 2 and 60 Mc. The effect of crystallinity was seen in measurements on stark rubber. The relation between frequency and temperature in the spin-lattice relaxation process is examined in terms of the Arrhenius equation and the WLF expression. The importance of using frequency as a variable in NMR studies of molecular motion is stressed.

Nuclear Magnetic Spin-Lattice Relaxation by Spin-Rotational Interactions

1961 ◽  
Vol 6 (7) ◽  
pp. 349-351 ◽  
Author(s):  
H. S. Gutowsky ◽  
I. J. Lawrenson ◽  
K. Shimomura
Keyword(s):  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Magnetic Spin ◽  
Nuclear Magnetic

Nuclear Magnetic Spin-Lattice Relaxation in Liquids

1956 ◽  
Vol 104 (3) ◽  
pp. 843-844 ◽  
Author(s):  
H. S. Gutowsky ◽  
D. E. Woessner
Keyword(s):  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Magnetic Spin ◽  
Nuclear Magnetic
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