PYROMELLITIC DIIMIDE

Mass

MS-NW-6885          
1,2,4,5-benzenetetracarboxylic acid diimide
C10H4N2O4           (Mass of molecular ion:    216)

   Source Temperature: 230 °C
   Sample Temperature: 190 °C
   Direct, 75 eV

      16.0       1.8
      17.0       2.3
      18.0       5.4
      28.0       2.3
      36.5       1.0
      37.0      17.4
      38.0       2.0
      43.0       1.6
      44.0       2.2
      44.5       2.4
      49.0       1.3
      50.0       2.7
      50.5       3.1
      51.0      12.8
      51.5       1.1
      53.0       1.3
      61.0       4.3
      62.0       3.3
      65.0       8.9
      70.0       1.7
      72.0       1.3
      73.0      11.9
      74.0      30.9
      75.0       3.3
      87.0       1.3
      88.0       3.8
      89.0       1.6
      99.0       1.4
     100.0       2.1
     101.0      15.8
     102.0      51.1
     103.0       4.9
     116.0       2.5
     117.0       1.1
     144.0       2.5
     145.0      21.4
     146.0       2.1
     172.0      25.8
     173.0      69.9
     174.0      20.1
     175.0       2.2
     216.0     100.0
     217.0      12.4
     218.0       1.9

Assign. Shift(ppm) A 8.90 B 8.101

     Hz     ppm     Int.

   3557.25   8.901    165
   3237.67   8.102   1000