甲基丙烯酸(79-41-4)紅外圖譜(IR1)
InChI:InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
InChIKey: CERQOIWHTDAKMF-UHFFFAOYSA-N
Smiles:C(O)(=O)C(C)=C
-
Mass
MS-NW-0658
methacrylic acid
C4H6O2 (Mass of molecular ion: 86)
Source Temperature: 280 °C
Sample Temperature: 170 °C
Reservoir, 75 eV
15.0 2.4
18.0 2.6
26.0 2.6
27.0 5.8
28.0 2.8
29.0 2.5
31.0 1.1
37.0 5.2
38.0 9.1
39.0 56.7
40.0 19.3
41.0 100.0
42.0 7.6
43.0 5.9
44.0 2.4
45.0 11.2
53.0 1.9
57.0 3.9
58.0 5.7
68.0 7.6
69.0 14.9
71.0 1.7
85.0 3.8
86.0 81.2
87.0 3.8
400 MHz in CDCl3
90 MHz in CDCl3
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| 1H NMR |
399.65 MHz |
| C4 H6 O2
|
0.05 ml : 0.5 ml CDCl3
|
| methacrylic acid
|
 |
Assign. Shift(ppm)
A 12.2
B 6.262
C 5.685
D 1.956
|
Hz ppm Int.
4895.86 12.251 60
2505.35 6.269 172
2504.44 6.267 346
2503.34 6.264 398
2502.79 6.263 396
2501.87 6.261 332
2500.77 6.258 155
2275.29 5.694 125
2273.83 5.690 328
2272.18 5.686 425
2270.72 5.682 306
2269.07 5.678 111
783.04 1.960 963
782.12 1.958 1000
781.39 1.956 997
780.47 1.953 898
-
| 1H NMR |
89.56 MHz |
| C4 H6 O2
|
0.04 ml : 0.5 ml CDCl3
|
| methacrylic acid
|
|
Assign. Shift(ppm)
A 11.3
B 6.256
C 5.679
D 1.955
|
Hz ppm Int.
1016.33 11.349 114
562.51 6.281 85
561.66 6.272 225
560.63 6.260 279
560.03 6.254 271
559.09 6.243 225
558.15 6.233 79
511.84 5.716 64
510.22 5.697 248
508.68 5.680 372
507.06 5.662 247
505.52 5.645 65
176.45 1.971 824
175.43 1.959 1000
174.91 1.953 963
173.89 1.942 799