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网站主页CAS数据库列表 20434-05-3更多图谱双(4-甲氧基苯基)次磷酸(20434-05-3)质谱(MS)

双(4-甲氧基苯基)次磷酸

产品名称 双(4-甲氧基苯基)次磷酸

CAS号20434-05-3

分子式C14H15O4P

分子量278.24


  • Mass

    MS-IW-0010          
    bis(p-methoxyphenyl)phosphinic acid
    C14H15O4P           (Mass of molecular ion:    278)
    

       Source Temperature: 220 °C
       Sample Temperature: 180 °C
       Direct, 75 eV
    

          39.0       1.6
          47.0       1.4
          50.0       1.2
          51.0       1.6
          63.0       3.6
          64.0       4.2
          65.0       3.7
          76.0       1.1
          77.0       9.6
          78.0       3.6
          79.0       1.0
          92.0       5.5
          93.0       1.3
         107.0       4.1
         108.0       6.0
         109.0       2.8
         123.0       1.8
         124.0      10.4
         128.0       1.7
         139.0       1.2
         155.0       2.7
         156.0       1.0
         171.0       5.7
         199.0       3.9
         216.0       2.8
         217.0       1.7
         229.0       3.3
         244.0       2.1
         245.0       6.7
         246.0       1.5
         247.0       2.9
         259.0      48.8
         260.0       7.9
         261.0       2.5
         262.0       1.3
         263.0      15.7
         264.0       2.5
         277.0      84.4
         278.0     100.0
         279.0      17.7
         280.0       2.3
         367.0       1.1
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C14 H15 O4 P 0.035 g : 0.5 ml DMSO-d6
    bis(p-methoxyphenyl)phosphinic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 10. B 7.638 C 7.009 D 3.776 J(B,C)=8.8HZ J(B,P-31)=11.5HZ J(C,P-31)=2.4HZ

         Hz     ppm     Int.
    

       3062.91   7.664    119
       3061.08   7.660     44
       3056.13   7.648     48
       3054.12   7.642    145
       3051.37   7.636    134
       3049.54   7.631     48
       3044.59   7.619     46
       3042.76   7.614    128
       3040.20   7.608     20
       2806.84   7.024    142
       2804.46   7.018    157
       2802.45   7.013     52
       2800.07   7.007     50
       2798.05   7.002    150
       2795.67   6.996    135
       2793.29   6.990     21
       1509.29   3.777   1000
    

in DMSO-d6



KBr disc



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