A fluorine nuclear magnetic resonance shielding study of substituent effects on charge distributions in benzophenone and its Lewis acid adducts

1967 ◽  
Vol 89 (10) ◽  
pp. 2391-2396 ◽  
Author(s):  
R. Garth. Pews ◽  
Yuho. Tsuno ◽  
Robert W. Taft
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Lewis Acid ◽  
Substituent Effects ◽  
Charge Distributions ◽  
Lewis Acid Adducts ◽  
Nuclear Magnetic

Nuclear Magnetic Resonance Chemical Shifts of some Monosubstituted Isothiazoles

1975 ◽  
Vol 53 (4) ◽  
pp. 596-603 ◽  
Author(s):  
Roderick E. Wasylishen ◽  
Thomas R. Clem ◽  
Edwin D. Becker
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Chemical Shifts ◽  
Substituent Effects ◽  
Charge Densities ◽  
Monosubstituted Benzenes ◽  
Proton Chemical Shifts ◽  
Nuclear Magnetic

Carbon-13 and proton chemical shifts have been measured for several monosubstituted isothiazoles. Substituent effects upon these chemical shifts are compared with those observed for monosubstituted benzenes, pyridines, and thiophenes. In general the observed substituent effects in the isothiazoles and thiophenes closely parallel one another. Correlations between the observed carbon-13 Chemical shifts and CNDO/2 calculated charge densities are examined.

Sign in / Sign up

Export Citation Format

Share Document