Substituent effects on sulfur-33 chemical shifts and nuclear quadrupole coupling constants in 4-substituted benzene sulfonates

1992 ◽  
Vol 57 (4) ◽  
pp. 1195-1198 ◽  
Author(s):  
Roberta Musio ◽  
Oronzo Sciacovelli
Keyword(s):  
Chemical Shifts ◽  
Substituent Effects ◽  
Coupling Constants ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

19F Nuclear Quadrupole Coupling in some Halomethanes

1986 ◽  
Vol 41 (1-2) ◽  
pp. 171-174 ◽  
Author(s):  
M. Frank ◽  
F. Gubitz ◽  
W. Ittner ◽  
W. Kreische ◽  
A. Labahn ◽  
...  
Keyword(s):  
Angular Distribution ◽  
Simple Model ◽  
Temperature Dependence ◽  
Coupling Constants ◽  
Temperature Dependent ◽  
Distribution Method ◽  
Quadrupole Coupling ◽  
Time Differential ◽  
Nuclear Quadrupole

The 19F quadrupole coupling constants in CF4, CHF3, CClF3 and CHClF2 are reported. The measurements were carried out temperature dependent using the time differential perturbed angular distribution method (TDPAD). The temperature dependence can be satisfactorily described in the framework of the Bayer-Kushida theory. A simple model is used to explain the appearance of H-F and Cl-F coupling constants in CHF3/CHClF2 and CClF3, respectively.

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