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Propylene oxide

Product Name Propylene oxide

CAS75-56-9

MFC3H6O

MW58.08

¹³CNMR

Mass

MS-NW-0785          
2-methyloxirane
C3H6O               (Mass of molecular ion:     58)

   Source Temperature: 220 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      14.0       3.0
      15.0      10.8
      25.0       1.7
      26.0      27.7
      27.0      49.8
      28.0     100.0
      29.0      36.1
      30.0       5.6
      31.0      31.6
      37.0       1.9
      38.0       2.6
      39.0       6.2
      40.0       1.3
      41.0       2.9
      42.0       3.6
      43.0      37.0
      55.0       1.3
      57.0       7.8
      58.0      81.4
      59.0       2.8

90 MHz in CDCl3

parameter neat

¹H NMR	89.56 MHz
C₃ H₆ O	0.04 ml : 0.5 ml CDCl₃
2-methyloxirane

    Assign.     Shift(ppm)

      A             2.979
      B             2.745
      C             2.427
      D             1.316

     Hz     ppm     Int.

    278.50   3.110     32
    275.81   3.080     38
    274.56   3.066     48
    273.25   3.052     93
    271.88   3.036     54
    270.56   3.021    100
    269.31   3.008    132
    268.13   2.994     99
    266.63   2.978    137
    265.44   2.964    106
    264.19   2.950    142
    263.13   2.939     47
    261.50   2.920    145
    260.44   2.908     47
    259.19   2.895     63
    256.50   2.865     63
    250.69   2.800    160
    250.19   2.794    160
    249.63   2.788     67
    246.75   2.756    127
    246.19   2.749    170
    245.63   2.743    244
    245.06   2.737    222
    244.56   2.731     92
    241.69   2.699    162
    241.13   2.693    150
    240.63   2.687     56
    220.94   2.467    228
    220.63   2.464    212
    218.25   2.437    214
    217.94   2.434    200
    215.81   2.410    164
    215.50   2.407    160
    213.19   2.381    148
    212.81   2.377    146
    120.50   1.346   1000
    118.06   1.319     51
    115.38   1.289    967

¹H NMR	300 MHz
C₃ H₆ O	neat
2-methyloxirane

    Parameter     ppm  Hz

      D(A)         2.849
      D(B)         2.589
      D(C)         2.279
      D(D)         1.214
       J(A,B)          3.88
       J(A,C)          2.57
       J(A,D)          5.14
       J(B,C)          5.37
       J(B,D)          0.52
       J(C,D)         -0.36
     
     ELLEMAN,D.D. ET AL. J.CHEM.PHYS. 42, 650 (1965)

     Hz     ppm     Int.

    865.73   2.886     29
    863.16   2.877     34
    861.82   2.873     42
    860.60   2.869     92
    859.28   2.864     49
    858.03   2.860    100
    856.71   2.856    109
    855.45   2.851    104
    854.15   2.847    113
    852.89   2.843    107
    851.58   2.839    108
    850.34   2.834     49
    849.02   2.830    105
    847.77   2.826     43
    846.45   2.821     39
    843.89   2.813     35
    781.55   2.605    137
    781.15   2.604    138
    777.20   2.591    157
    776.25   2.587    178
    772.30   2.574    141
    771.91   2.573    140
    687.58   2.292    186
    685.03   2.283    184
    682.21   2.274    170
    679.66   2.266    161
    366.76   1.223   1000
    361.63   1.205    981

in CDCl3

CCl4 solution

liquid film

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