Tetrapropoxysilane

Mass

MS-NW-8608          
tetrapropyl orthosilicate
C12H28O4Si          (Mass of molecular ion:    264)

   Source Temperature: 280 °C
   Sample Temperature: 140 °C
   Reservoir, 75 eV

      27.0       3.6
      28.0       1.0
      29.0       2.9
      31.0       2.7
      39.0       1.3
      41.0       7.7
      42.0       1.5
      43.0      10.3
      45.0       4.1
      55.0       2.2
      57.0       1.0
      62.0       3.8
      63.0      16.2
      64.0       1.0
      76.0       1.8
      77.0       3.3
      79.0      54.6
      80.0       2.9
      81.0       2.7
      83.0       5.9
      87.0       1.3
      89.0       2.5
      91.0       1.5
      92.0       1.1
      93.0      11.5
      97.0       3.4
     101.0       1.5
     103.0       6.1
     105.0       6.7
     107.0       2.4
     109.0       2.1
     111.0       1.3
     117.0       4.3
     118.0       1.0
     119.0       4.7
     121.0      24.4
     122.0       2.1
     123.0       4.9
     133.0       3.8
     135.0      10.6
     136.0       1.0
     137.0       8.1
     139.0       1.6
     145.0       1.8
     147.0       5.1
     149.0       1.7
     151.0      51.2
     152.0       4.9
     153.0       2.4
     163.0      12.2
     164.0       1.5
     165.0       3.9
     175.0       1.0
     177.0      30.8
     178.0       4.0
     179.0       4.6
     181.0       1.1
     191.0       1.1
     193.0      30.4
     194.0       4.0
     195.0       1.5
     205.0      23.1
     206.0       3.5
     207.0       1.4
     221.0       4.8
     222.0       1.0
     223.0       1.2
     235.0     100.0
     236.0      16.4
     237.0       5.3
     263.0       1.9
     264.0       1.6

Assign. Shift(ppm) A 3.738 B 1.601 C 0.922

     Hz     ppm     Int.

   1500.49   3.755    415
   1497.56   3.748     43
   1493.77   3.738    769
   1487.18   3.722    461
    658.81   1.649     55
    651.37   1.630    198
    644.65   1.614    345
    643.92   1.612    276
    637.21   1.595    401
    632.81   1.584     37
    630.49   1.578    212
    630.00   1.577    189
    623.17   1.560     70
    380.86   0.953     37
    376.22   0.942    592
    368.65   0.923   1000
    364.50   0.913     62
    361.33   0.905    600
    357.06   0.894     50