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1,5-DIMETHYLNAPHTHALENE

Product Name 1,5-DIMETHYLNAPHTHALENE

CAS571-61-9

MFC12H12

MW156.22

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  • Mass

    MS-NW-4406          
    1,5-dimethylnaphthalene
    C12H12              (Mass of molecular ion:    156)
    

       Source Temperature: 240 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          27.0       1.1
          39.0       2.5
          50.0       1.6
          51.0       3.9
          57.5       1.2
          62.0       1.4
          63.0       4.6
          64.0       3.8
          65.0       1.1
          70.5       2.1
          74.0       1.4
          75.0       1.7
          76.0       5.9
          76.5       1.6
          77.0       7.5
          77.5       1.1
          78.0       3.0
          89.0       1.4
         102.0       1.1
         115.0      11.2
         116.0       1.5
         126.0       1.2
         127.0       4.3
         128.0       7.2
         129.0       4.1
         139.0       5.4
         140.0       2.1
         141.0      58.3
         142.0       8.9
         151.0       2.0
         152.0       7.1
         153.0       9.6
         154.0       3.8
         155.0      28.3
         156.0     100.0
         157.0      12.1
         220.0       2.0
         222.0       2.0
    

parameter in CDCl3

90 MHz in CDCl3

400 MHz in CDCl3


  • 1H NMR 300 MHz
    C12 H12 11 wt% in CDCl3
    1,5-dimethylnaphthalene
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 7.253 D(B) 7.327 D(C) 7.805 J(A,B) 6.9 J(A,C) 1.0 J(B,C) 8.8 D(D) 2.628 BARTLE,K.D. & JONES,D.W. J.MOL.SPECTROSC. 32, 353 (1969)

         Hz     ppm     Int.
    

       2346.56   7.822     85
       2345.40   7.818     86
       2337.92   7.793     97
       2336.81   7.789     98
       2206.26   7.354     67
       2199.36   7.331    113
       2197.67   7.326     55
       2190.81   7.303    108
       2179.42   7.265    117
       2178.26   7.261    122
       2172.51   7.242     68
       2171.35   7.238     60
        788.41   2.628   1000
    


  • 1H NMR 89.56 MHz
    C12 H12 0.043 g : 0.5 ml CDCl3
    1,5-dimethylnaphthalene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.84 B 7.38 C 7.31 D 2.673

         Hz     ppm     Int.
    

        708.31   7.909     52
        705.94   7.883     65
        701.75   7.836     41
        700.94   7.827     61
        699.94   7.816     61
        698.63   7.801     84
        668.94   7.470     63
        662.00   7.392    182
        656.13   7.327    107
        654.50   7.308    317
        649.88   7.257     27
        649.06   7.248     27
        239.50   2.675   1000
    


  • 1H NMR 399.65 MHz
    C12 H12 13.3 mg : 0.5 ml CDCl3
    1,5-dimethylnaphthalene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.876 B 7.404 C 7.325 D 2.697

         Hz     ppm     Int.
    

       3151.86   7.887    120
       3143.55   7.866    133
       2967.16   7.425     95
       2960.33   7.408    147
       2958.86   7.404     99
       2951.90   7.387    135
       2930.30   7.333    146
       2923.46   7.316     98
       1078.00   2.698   1000
    

in CDCl3



KBr disc



nujol mull



4880 A,200 M,powder



CATION RADICAL, OXIDATION WITH SBCL5