Methacrolein

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 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