Proton Spin Relaxation in Aqueous Solutions of Paramagnetic Ions. IV. Temperature Dependence in Solutions of Copper(II)-Ethylenediamine Complexes1,2

1959 ◽  
Vol 81 (24) ◽  
pp. 6409-6412 ◽  
Author(s):  
P. F. Cox ◽  
L. O. Morgan
Keyword(s):  
Aqueous Solutions ◽  
Temperature Dependence ◽  
Spin Relaxation ◽  
Proton Spin ◽  
Paramagnetic Ions

Temperature Dependence of Proton Relaxation Times in Aqueous Solutions of Paramagnetic Ions

1959 ◽  
Vol 30 (4) ◽  
pp. 950-956 ◽  
Author(s):  
Robert A. Bernheim ◽  
Thomas H. Brown ◽  
H. S. Gutowsky ◽  
D. E. Woessner
Keyword(s):  
Aqueous Solutions ◽  
Temperature Dependence ◽  
Relaxation Times ◽  
Proton Relaxation ◽  
Paramagnetic Ions

Proton Spin-Rotational Interaction in Crystalline 1-Hydroxy-2,4-Hexadiyne

1976 ◽  
Vol 31 (6) ◽  
pp. 666-667 ◽  
Author(s):  
J. U. von Schütz ◽  
D. Bloor ◽  
W. Steudle ◽  
H. C. Wolf ◽  
D. J. Ando
Keyword(s):  
Relaxation Time ◽  
Temperature Dependence ◽  
Spin Relaxation ◽  
Dipolar Interaction ◽  
Proton Spin ◽  
Spin Relaxation Time ◽  
Rotational Interaction

The amplitude and temperature dependence of the longitudinal proton spin relaxation time T1 in crystalline 1-hydroxy-2,4-hexadiyne is caused by the activated process of the CH3-group reorientation. The low hindering barrier of 4.4 kj/mole leads above 200 K to relaxation contributions by spin-rotational interaction, which are comparable to the dipolar interaction

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