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网站主页CAS数据库列表 78-85-3更多图谱2-甲基丙烯醛(78-85-3)Raman光谱

2-甲基丙烯醛

产品名称 2-甲基丙烯醛

CAS号78-85-3

分子式C4H6O

分子量70.09

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  • Mass

    MS-IW-5628          
    methacrylaldehyde
    C4H6O               (Mass of molecular ion:     70)
    

       Source Temperature: 200 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          15.0       2.3
          18.0       1.0
          25.0       1.0
          26.0       4.1
          27.0      12.1
          28.0       5.3
          29.0      12.9
          31.0       2.2
          36.0       1.0
          37.0       6.8
          38.0      11.0
          39.0      74.6
          40.0      13.5
          41.0      92.2
          42.0      22.0
          43.0      23.2
          44.0       1.8
          50.0       2.1
          51.0       1.6
          52.0       1.0
          53.0       3.0
          55.0       8.2
          57.0       2.3
          58.0       5.4
          67.0       1.3
          69.0      13.5
          70.0     100.0
          71.0      10.4
          77.0       1.1
          83.0       1.6
          93.0       2.0
          97.0       1.5
         111.0      31.3
         112.0       2.9
         140.0       7.5
    

parameter in cyclohexane

400 MHz in CDCl3


  • 1H NMR 300 MHz
    C4 H6 O infinite dilution in cyclohexane
    methacrylaldehyde
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 6.061 D(B) 5.756 D(C) 1.782 D(D) 9.479 J(A,B) 1.05 J(A,C) -1.45 J(A,D) 0.25 J(B,C) -1.05 J(B,D) 0.0 J(C,D) 0.0 DOUGLAS,A.W. & GOLDSTEIN,J.H. J.MOL.SPECTROSC. 16, 1 (1965)

         Hz     ppm     Int.
    

       2843.74   9.479    735
       1820.93   6.070     68
       1819.58   6.065    195
       1818.30   6.061    262
       1817.09   6.057    199
       1815.73   6.052     68
       1727.84   5.759    245
       1726.78   5.756    345
       1725.85   5.753    248
        535.87   1.786    712
        534.59   1.782   1000
        533.45   1.778    723
    


  • 1H NMR 399.65 MHz
    C4 H6 O 0.05 ml : 0.5 ml CDCl3
    methacrylaldehyde
    ChemicalStructure
        Assign.     Shift(ppm)
    A 9.563 B 6.310 C 6.012 D 1.841

         Hz     ppm     Int.
    

       3822.02   9.564    856
       2524.72   6.318    111
       2523.19   6.314    282
       2521.97   6.311    342
       2520.75   6.308    289
       2519.23   6.304    123
       2404.02   6.016    362
       2402.95   6.013    477
       2402.04   6.011    345
       2400.97   6.008    147
        748.44   1.873     22
        747.38   1.871     23
        746.92   1.869     23
        745.85   1.867     23
        745.09   1.865     25
        737.00   1.845   1000
        735.93   1.842    971
        734.41   1.838    795
    

in CDCl3



CCl4 solution



liquid film