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In the 1H nmr spectra of 2c, 2d, 2e and 2g the two "doublets" from the para substituted aromatic rings are in fact the result of an AA'XX' system and the observed J in each case should be the same and is J2,3 + J2,5.  Please can you give me the average value of the two observed J values in each case rounded to 1 decimal place.  I cannot do this without knowing the individual values to 2 decimal places.
  

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