1α,3α-Dibromocyclobutane

    Parameter     ppm  Hz

      D(A)         4.126
      D(B)         3.273
      D(C)         2.917
       J(A,A')         0.
       J(A,B)          7.11
       J(A,B')         7.11
       J(A,C)          8.84
       J(A,C')         8.84
       J(A',B)         7.11
       J(A',B')        7.11
       J(A',C)         8.84
       J(A',C')        8.84
       J(B,B')         5.57
       J(B,C)        -12.42
       J(B,C')        -1.14
       J(B',C)        -1.14
       J(B',C')      -12.42
       J(C,C')        -0.30
     
     WIBERG,K.B. & BARTH,D.E. J.AM.CHEM.SOC. 91, 5124 (1969)
     J(A,A') : NOT OBSERVABLE.