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网站主页CAS数据库列表 7250-68-2更多图谱偶氮苯-4,4'-二羧酸二乙酯(7250-68-2)核磁图(1HNMR)

偶氮苯-4,4'-二羧酸二乙酯

产品名称 偶氮苯-4,4'-二羧酸二乙酯

CAS号7250-68-2

分子式C18H18N2O4

分子量326.35


  • Mass

    MS-IW-8670          
    diethyl azobenzene-4,4'-dicarboxylate
    C18H18N2O4          (Mass of molecular ion:    326)
    

       Source Temperature: 170 °C
       Sample Temperature: 160 °C
       Direct, 75 eV
    

          18.0       2.0
          28.0       1.3
          29.0       3.6
          50.0       1.7
          65.0       8.9
          75.0       3.5
          76.0       7.7
          77.0       2.2
          93.0       1.9
         103.0      23.0
         104.0      12.0
         105.0       1.7
         118.0       4.4
         121.0      11.5
         122.0       1.1
         149.0     100.0
         150.0      10.2
         151.0       1.4
         152.0       1.7
         177.0      19.1
         178.0       2.1
         253.0       1.8
         281.0      11.0
         282.0       2.1
         326.0      33.9
         327.0       7.2
         328.0       1.0
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C18 H18 N2 O4 0.036 g : 0.5 ml CDCl3
    diethyl azobenzene-4,4'-dicarboxylate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 8.207 B 7.976 C 4.422 D 1.430

         Hz     ppm     Int.
    

       3286.74   8.225     73
       3284.79   8.220    409
       3282.84   8.215    139
       3277.95   8.203    158
       3276.00   8.198    491
       3274.05   8.193     93
       3193.60   7.991     89
       3191.77   7.987    490
       3189.82   7.982    150
       3184.94   7.970    139
       3182.98   7.965    405
       3181.03   7.960     75
       1778.20   4.450    142
       1771.12   4.432    445
       1763.92   4.414    460
       1756.84   4.396    151
        578.86   1.449    490
        571.78   1.431   1000
        564.58   1.413    483
    

in CDCl3



KBr disc



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