Molecular FormulaC16H13NO4
Molecular Weight283.28
InChIInChI=1S/C16H13NO4/c1-21-15-9-5-13(6-10-15)16(18)11-4-12-2-7-14(8-3-12)17(19)20/h2-11H,1H3/b11-4+
InChIKey BUIDDTIFHZVUNT-NYYWCZLTSA-N
SmilesC(C1=CC=C(OC)C=C1)(=O)/C=C/C1=CC=C([N+]([O-])=O)C=C1

Mass
MS-NW-9754 trans-4'-methoxy-4-nitrochalcone C16H13NO4 (Mass of molecular ion: 283)
Source Temperature: 180 °C Sample Temperature: 130 °C Direct, 75 eV
18.0 1.1
50.0 1.2
51.0 1.3
63.0 2.2
64.0 3.0
75.0 1.5
76.0 3.9
77.0 13.7
78.0 1.3
79.0 1.1
89.0 1.5
90.0 1.7
92.0 10.3
93.0 1.1
102.0 6.0
107.0 11.6
108.0 3.8
118.0 1.9
130.0 4.5
135.0 77.7
136.0 6.9
139.0 1.1
150.0 1.6
151.0 1.4
152.0 1.1
153.0 1.1
161.0 1.4
164.0 1.1
165.0 10.7
166.0 6.7
167.0 1.0
176.0 5.2
177.0 3.2
178.0 5.2
179.0 1.4
193.0 1.8
194.0 6.8
195.0 1.8
206.0 1.5
208.0 3.4
209.0 5.8
210.0 1.6
222.0 2.6
225.0 4.1
236.0 12.0
237.0 9.8
238.0 2.4
240.0 3.4
252.0 5.1
253.0 3.4
254.0 1.5
255.0 35.4
256.0 6.0
266.0 9.1
267.0 2.1
268.0 8.7
269.0 1.4
282.0 10.0
283.0 100.0
284.0 18.0
285.0 2.4
90 MHz in CDCl3
400 MHz in CDCl3

| 1H NMR | 89.56 MHz |
| C16 H13 N O4 | 0.031 g : 0.5 ml CDCl3 |
| trans-4'-methoxy-4-nitrochalcone | |
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Assign. Shift(ppm) |
Hz ppm Int.
744.50 8.313 153
742.56 8.292 54
737.56 8.236 83
735.56 8.214 229
733.38 8.189 39
733.25 8.188 39
728.50 8.135 38
725.69 8.103 209
723.63 8.080 64
718.81 8.027 86
716.69 8.003 241
713.88 7.971 37
709.56 7.923 35
702.25 7.842 57
700.19 7.819 221
698.19 7.796 71
693.69 7.746 236
691.31 7.719 189
689.56 7.700 287
673.94 7.526 37
633.94 7.079 37
631.13 7.048 234
629.00 7.024 59
624.19 6.970 71
622.13 6.947 186
349.44 3.902 1000

| 1H NMR | 399.65 MHz |
| C16 H13 N O4 | 0.031 g : 0.5 ml CDCl3 |
| trans-4'-methoxy-4-nitrochalcone | |
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Assign. Shift(ppm) |
Hz ppm Int.
3305.79 8.272 194 3304.08 8.268 76 3298.83 8.255 65 3297.00 8.250 211 3294.80 8.245 39 3225.71 8.072 30 3222.90 8.065 230 3220.70 8.059 84 3215.94 8.047 74 3213.87 8.042 257 3210.94 8.035 33 3124.02 7.817 81 3113.89 7.792 35 3111.57 7.786 212 3108.40 7.778 154 3104.61 7.769 63 3103.03 7.765 181 3102.54 7.764 174 3100.71 7.759 36 3066.77 7.674 220 3051.15 7.635 128 2805.42 7.020 31 2802.61 7.013 238 2800.54 7.008 83 2795.65 6.996 69 2793.58 6.991 241 1559.69 3.903 1000
in CDCl3

KBr disc

nujol mull

(E)-1-(4-Methoxyphenyl)-3-(4-nitrophenyl)-2-propene-1-one(77636-36-3) MS Atlas of Related Products
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