gamma-carboline

    Parameter     ppm  Hz

      D(A)         7.499
      D(B)         8.443
      D(C)         9.351
       J(A,B)          5.71
       J(A,C)          1.03
       J(B,C)          0.0
     
      D(D)         8.244
      D(E)         7.283
      D(F)         7.493
      D(G)         7.594
       J(D,E)          7.91
       J(D,F)          1.12
       J(D,G)          0.82
       J(E,F)          7.25
       J(E,G)          0.94
       J(F,G)          8.15
     
      D(H)        11.73
     
     BALKAU,F. & HEFFERNAN,M.L. AUST.J.CHEM. 26, 1501 (1973)
     D(H):BROAD. J(B,C):NOT DETECTED. J(C,H) & J(D,H):NOT DETECTED.