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网站主页CAS数据库列表 99-73-0更多图谱2,4'-二溴苯乙酮(99-73-0)核磁图(1HNMR)

2,4'-二溴苯乙酮

产品名称 2,4'-二溴苯乙酮

CAS号99-73-0

分子式C8H6Br2O

分子量277.94

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  • Mass

    MS-NW-1808          
    2,4'-dibromoacetophenone
    C8H6Br2O            (Mass of molecular ion:    276)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          14.0       1.1
          17.0       1.6
          18.0       6.7
          37.0       2.5
          38.0       5.5
          39.0       3.8
          42.0       3.8
          43.0       3.3
          44.0       1.1
          45.0       1.9
          49.0       2.2
          50.0      29.3
          51.0       7.0
          61.0       1.8
          62.0       3.5
          63.0       6.2
          64.0       1.8
          73.0       2.9
          74.0      13.2
          75.0      26.3
          76.0      26.7
          77.0       2.7
          79.0       1.2
          81.0       1.1
          89.0       8.6
          90.0      15.1
          91.0       1.4
          93.0       1.5
          95.0       1.5
         104.0       3.0
         139.0       2.5
         155.0      25.0
         156.0       2.1
         157.0      25.2
         158.0       1.7
         169.0       6.4
         171.0       6.3
         183.0     100.0
         184.0       7.9
         185.0      98.0
         186.0       7.3
         198.0       1.4
         200.0       1.3
         276.0       2.5
         278.0       4.8
         280.0       2.4
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C8 H6 Br2 O 0.047 g : 0.5 ml CDCl3
    2,4'-dibromoacetophenone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.84 B 7.64 C 4.394

         Hz     ppm     Int.
    

        707.94   7.905    152
        707.44   7.900     68
        705.81   7.881     59
        701.31   7.831     72
        699.13   7.807    305
        697.19   7.785     66
        689.25   7.696     58
        687.31   7.675    301
        685.13   7.650     81
        680.63   7.600     55
        678.44   7.576    148
        393.56   4.395   1000
        392.25   4.380     27
    

in CDCl3



CCl4 solution



KBr disc



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