
TY  - JOUR
A1  - Rae, ID 
A1  - Smith, LK 
T1  - Fluorine magnetic resonance studies. I. <I>para</I>-Substituted &#946;,&#946;-difluorostyrenes
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1972
VL  - 25
IS  - 7
SP  - 1465
EP  - 1471
KW  - 
UR  - https://doi.org/10.1071/CH9721465 
N2  - A series of seven para-substituted &#946;,&#946;-difluorostyrenes has been prepared and their proton and fluorine magnetic resonance spectra recorded. The fluorine spectra show interesting correlations with the &#963;- values for the para substituents, the fluorine resonances moving to lower field and the geminal fluorine-fluorine coupling constant decreasing as &#963;- increases. These trends parallel those observed in the analogous styrenes but rather more precise relationships have been established for the fluorine compounds. Long range fluorine-fluorine spin-spin coupling over six and seven bonds, respectively, has been observed in the &#946;,&#946;,&#946;,3- and &#946;,&#946;,4-trifluoro-styrenes. 
ER  -

