三羰基环庚三烯铬

    Parameter     ppm  Hz

      D(A)         5.297
      D(B)         4.185
      D(C)         2.671
      D(D)         1.082
      D(E)         2.170
       J(A,A')         8.45
       J(A,B)          6.97
       J(A,B')         0.73
       J(A,C)          1.27
       J(A,C')         0.
       J(A,D)          0.
       J(A,E)          0.
       J(A',B)         0.73
       J(A',B')        6.97
       J(A',C)         0.
       J(A',C')        1.27
       J(A',D)         0.
       J(A',E)         0.
       J(B,B')         0.51
       J(B,C)          8.2
       J(B,C')         0.5
       J(B,D)         -1.07
       J(B,E)          0.92
       J(B',C)         0.5
       J(B',C')        8.2
       J(B',D)        -1.07
       J(B',E)         0.92
       J(C,C')         0.5
       J(C,D)          3.17
       J(C,E)          8.90
       J(C',D)         3.17
       J(C',E)         8.90
       J(D,E)        -14.05
     
     GUENTHER,H. ET AL. J.AM.CHEM.SOC. 91, 3808 (1969)
     J(B,C') < 0.5HZ J(B',C) < 0.5HZ J(C,C') < 0.5HZ
     J(A,C)+J(A',C)=J(A,C')+J(A',C')=1.27HZ
     ASSUMED J(A,C)=J(A',C)=1.27HZ AND J(A',C)=J(A',C')=0HZ