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反式-1,2-环丁二酸

产品名称 反式-1,2-环丁二酸

CAS号1124-13-6

分子式C6H8O4

分子量144.13

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  • Mass

    MS-NW-7096          
    (+-)-trans-1,2-cyclobutanedicarboxylic acid
    C6H8O4              (Mass of molecular ion:    144)
    

       Source Temperature: 180 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          14.0       1.0
          15.0       2.4
          17.0       1.6
          18.0       6.2
          25.0       1.2
          26.0      18.2
          27.0      70.4
          28.0      33.4
          29.0      25.4
          31.0       3.6
          37.0       1.7
          38.0       3.3
          39.0      24.3
          40.0       2.5
          41.0      16.1
          42.0       9.3
          43.0      39.9
          44.0       9.1
          45.0      39.3
          46.0       2.9
          49.0       1.3
          50.0       5.4
          51.0       7.9
          52.0       4.6
          53.0      38.9
          54.0      25.3
          55.0      69.7
          56.0       9.9
          57.0      17.5
          58.0       6.0
          60.0       1.9
          68.0       1.4
          69.0      12.1
          70.0      12.7
          71.0      14.6
          72.0      16.0
          73.0      50.7
          74.0       2.2
          80.0       7.8
          81.0      26.7
          82.0      17.1
          83.0       2.4
          84.0       1.4
          85.0       1.9
          86.0       1.4
          88.0       1.2
          97.0      10.4
          98.0     100.0
          99.0      38.1
         100.0      11.7
         108.0      15.0
         109.0       1.2
         117.0      13.7
         126.0      75.5
         127.0       8.2
    

400 MHz in D2O


  • 1H NMR 399.65 MHz
    C6 H8 O4 0.036 g : 0.5 ml D2O
    (+-)-trans-1,2-cyclobutanedicarboxylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    B 3.446 C 2.173 THE SOLVENT SIGNAL REMOVED.

         Hz     ppm     Int.
    

       1385.86   3.468    374
       1384.28   3.464    289
       1383.18   3.461    331
       1379.27   3.452    518
       1376.71   3.445    905
       1375.49   3.442    448
       1374.39   3.439    378
       1370.36   3.429    385
       1368.16   3.424    368
        877.32   2.196    250
        875.24   2.191    434
        873.29   2.186    816
        872.07   2.183   1000
        870.12   2.178    969
        867.68   2.172    900
        864.87   2.165    995
        863.28   2.161    891
        860.96   2.155    356
        858.76   2.149    209
        856.57   2.144    164
    

in D2O



KBr disc



nujol mull