Mass

MS-IW-1088          
methylenecyclobutane
C5H8                (Mass of molecular ion:     68)

   Source Temperature: 220 °C
   Sample Temperature: 160 °C
   Reservoir, 75 eV

      26.0       1.5
      27.0       8.5
      28.0       1.8
      29.0       1.9
      31.0       1.6
      37.0       1.6
      38.0       4.0
      39.0      41.3
      40.0      80.5
      41.0      16.5
      42.0      10.9
      43.0       1.0
      50.0       2.0
      51.0       2.8
      52.0       1.4
      53.0      32.4
      54.0       1.7
      55.0       3.8
      61.0       1.0
      62.0       1.5
      63.0       1.8
      65.0       6.7
      66.0       3.8
      67.0     100.0
      68.0      86.5
      69.0       5.2
      70.0       1.3

Parameter ppm Hz D(A) 4.645 D(B) 2.649 D(C) 1.890 J(A,A') 0.09 J(A,B) -2.67 J(A,B') -2.67 J(A,B'') -2.19 J(A,B''') -2.19 J(A,C) 0.06 J(A,C') 0.06 J(A',B) -2.19 J(A',B') -2.19 J(A',B'') -2.67 J(A',B''') -2.67 J(A',C) 0.06 J(A',C') 0.06 J(B,B') -15.26 J(B,B'') 0.87 J(B,B''') -3.17 J(B,C) 9.57 J(B,C') 6.29 J(B',B'') -3.17 J(B',B''') 0.87 J(B',C) 6.29 J(B',C') 9.57 J(B'',B''') -15.26 J(B'',C) 9.57 J(B'',C') 6.29 J(B''',C) 6.29 J(B''',C') 9.57 J(C,C') -10.85 LEMARIE,B. ET AL. J.CHIM.PHYS. 72, 1253 (1975)

     Hz     ppm     Int.

   1398.37   4.661    199
   1395.95   4.653    729
   1393.53   4.645    988
   1391.11   4.637    740
   1388.66   4.629    206
    805.17   2.684    280
    802.75   2.676    510
    800.33   2.668    300
    797.33   2.658    556
    794.91   2.650   1000
    792.51   2.642    563
    789.38   2.631    357
    786.94   2.623    630
    784.52   2.615    320
    582.43   1.941    146
    577.09   1.924     50
    574.30   1.914    383
    572.54   1.908     59
    571.12   1.904     44
    568.38   1.895    114
    566.78   1.889    630
    562.86   1.876     41
    561.28   1.871     54
    558.73   1.862    354
    556.65   1.855     53
    551.05   1.837    108
    550.71   1.836    108