7.74 7.76 7.78 ppm ppm8.348.338.32 8.31 8.30 The spectrum above was obtained using 'H-H COSY experiment...
7.74 7.76 7.78 ppm ppm8.348.338.32 8.31 8.30 The spectrum above was obtained using 'H-H COSY experiment on a 600 MHz spectrometer. Using the information in spectrum, determine the J-coupling constant between the involved 'H spin pair (your result should be in unit of Hz)