4-Methylcumarin

    Parameter     ppm  Hz

      D(A)         6.181
      D(B)         7.566
      D(C)         7.258
      D(D)         7.480
      D(E)         7.254
      D(F)         2.400
       J(A,B)          0.36
       J(A,C)          0.12
       J(A,D)          0.27
       J(A,E)          0.01
       J(A,F)         -1.28
       J(B,C)          7.98
       J(B,D)          1.56
       J(B,E)          0.48
       J(B,F)          0.06
       J(C,D)          7.35
       J(C,E)          1.20
       J(C,F)          0.00
       J(D,E)          8.32
       J(D,F)          0.04
       J(E,F)          0.06
     
     ROWBOTHAM,J.B. & SCHAEFER,T. CAN.J.CHEM. 51, 953 (1973)
     THE SIGN OF J(A,F) IS ASSUMED.