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3,4-二甲基-2-戊烯

产品名称 3,4-二甲基-2-戊烯

CAS号4914-92-5

分子式C7H14

分子量98.19

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  • Mass

    MS-NW-3498          
    (E)-3,4-dimethyl-2-pentene
    C7H14               (Mass of molecular ion:     98)
    

       Source Temperature: 280 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          15.0       2.1
          26.0       1.3
          27.0      14.7
          28.0       1.6
          29.0       9.6
          38.0       1.5
          39.0      18.7
          40.0       2.8
          41.0      41.6
          42.0       3.8
          43.0      16.1
          50.0       2.3
          51.0       4.0
          52.0       1.6
          53.0       8.7
          54.0       2.8
          55.0      93.3
          56.0       9.2
          57.0       1.5
          63.0       1.0
          65.0       2.2
          67.0       9.0
          68.0       1.4
          69.0      11.9
          70.0       4.5
          71.0       1.1
          77.0       1.2
          79.0       1.5
          81.0       3.3
          82.0       1.8
          83.0     100.0
          84.0       6.3
          98.0      37.7
          99.0       3.0
    

90 MHz in CDCl3

400 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C7 H14 0.04 ml : 0.5 ml CDCl3
    (E)-3,4-dimethyl-2-pentene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 5.214 B 2.213 C 1.56 D 0.979

         Hz     ppm     Int.
    

        464.25   5.184     30
        463.75   5.179     31
        199.13   2.224     35
        143.88   1.607    133
        142.94   1.597    204
        142.13   1.587    248
        141.06   1.576    233
        140.06   1.564    395
        138.38   1.546    208
        137.81   1.539    175
        137.13   1.532    253
        136.38   1.523    214
        135.44   1.513    115
         90.81   1.014   1000
         84.06   0.939    825
    


  • 1H NMR 399.65 MHz
    C7 H14 0.05 ml : 0.5 ml CDCl3
    (E)-3,4-dimethyl-2-pentene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 5.222 B 2.221 C 1.56 D 0.978

         Hz     ppm     Int.
    

       2090.21   5.231     35
       2089.72   5.229     32
       2088.62   5.227     33
       2084.47   5.216     31
       2083.01   5.213     35
       2081.91   5.210     30
        894.29   2.238     35
        887.45   2.221     46
        880.62   2.204     35
        627.93   1.572    203
        627.08   1.570    279
        626.22   1.567    304
        625.00   1.564    281
        624.02   1.562    406
        622.44   1.558    237
        621.22   1.555    238
        620.48   1.553    200
        619.51   1.551    128
        394.17   0.987   1000
        387.33   0.970    893
    

in CDCl3



liquid film