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2,4-二甲基-1,3-戊二烯

产品名称 2,4-二甲基-1,3-戊二烯

CAS号1000-86-8

分子式C7H12

分子量96.17


  • Mass

    MS-NW-9730          
    2,4-dimethyl-1,3-pentadiene
    C7H12               (Mass of molecular ion:     96)
    

       Source Temperature: 210 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          27.0      10.9
          28.0       1.5
          29.0       5.5
          38.0       2.0
          39.0      26.1
          40.0       4.4
          41.0      36.3
          42.0       2.7
          43.0       3.7
          50.0       3.3
          51.0       6.5
          52.0       2.9
          53.0      29.7
          54.0       9.9
          55.0      15.9
          56.0      13.7
          57.0       1.0
          63.0       1.9
          65.0       7.2
          66.0       3.7
          67.0      16.6
          68.0       3.8
          69.0       1.0
          77.0       9.0
          78.0       1.5
          79.0      47.0
          80.0       4.5
          81.0     100.0
          82.0       7.1
          91.0       1.6
          93.0       1.4
          95.0       4.8
          96.0      83.9
          97.0       6.7
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C7 H12 0.05 ml : 0.5 ml CDCl3
    2,4-dimethyl-1,3-pentadiene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 5.646 B *1 4.913 C *1 4.736 D 1.822 E *2 1.801 F *2 1.768

         Hz     ppm     Int.
    

       2256.71   5.647    254
       2255.25   5.644    257
       2254.15   5.641    184
       1967.29   4.923     82
       1965.82   4.919    203
       1964.36   4.916    251
       1963.26   4.913    263
       1961.91   4.910    222
       1960.45   4.906     96
       1893.80   4.739    249
       1893.31   4.738    250
       1892.94   4.737    252
       1892.58   4.736    249
       1892.09   4.735    245
        728.27   1.823    973
        720.58   1.804    944
        718.99   1.800    992
        707.40   1.771    923
        705.81   1.767   1000
    

in CDCl3



liquid film