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甲基烯环丁烷

产品名称 甲基烯环丁烷

CAS号1120-56-5

分子式C5H8

分子量68.12

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  • 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 neat

400 MHz in CDCl3


  • 1H NMR 300 MHz
    C5 H8 neat
    methylenecyclobutane
    ChemicalStructure
        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
    


  • 1H NMR 399.65 MHz
    C5 H8 0.05 ml : 0.5 ml CDCl3
    methylenecyclobutane
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.685 B 2.685 C 1.928

         Hz     ppm     Int.
    

       1876.71   4.696    258
       1874.27   4.690    770
       1871.83   4.684    991
       1869.38   4.678    838
       1867.07   4.672    274
       1083.74   2.712    392
       1081.30   2.706    629
       1078.86   2.700    421
       1075.81   2.692    613
       1073.24   2.686   1000
       1070.92   2.680    665
       1067.75   2.672    470
       1065.31   2.666    759
       1062.99   2.660    456
        785.40   1.966    222
        783.33   1.961     47
        779.91   1.952     84
        777.34   1.946    456
        769.53   1.926    711
        762.70   1.909    138
        761.72   1.906    429
        755.86   1.892     34
        753.66   1.886    182
    

in CDCl3



liquid film