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qq156437683銅蟲 (小有名氣)
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[求助]
幫忙翻譯下
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1H NMR中d=8.15ppm和d=7.31ppm附近分別有兩個雙重峰，這是苯環(huán)相鄰兩個氫的耦合產(chǎn)生的，且兩者個數(shù)相等，都是12個H. d=10.19ppm為伯胺H的化學位移，在d=7.31ppm 和7.10ppm 是苯環(huán)上H的位移，各有一個雙重峰，表明苯環(huán)上對位的硝基全部被取代了。 |
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鐵桿木蟲 (著名寫手)
- 翻譯EPI: 40
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Carena: 金幣+1, 感謝應(yīng)助 2013-01-12 21:55:08
qq156437683: 金幣+8, ★有幫助 2013-01-23 10:45:14
Carena: 金幣+1, 感謝應(yīng)助 2013-01-12 21:55:08
qq156437683: 金幣+8, ★有幫助 2013-01-23 10:45:14
| In 1H NMR there exists two double peaks with the same H of 12 produced by coupling of two adjacent H on benzene at diameter of 8.15 and 7.31 ppm. Diameter of 10.19 ppm is chemical shift of H of primary amine. There exist two double peaks that belong to H on benzene at diameter of 7.31 and 7.10 ppm，indicating that contrapuntal nitro on benzene is replaced. |
2樓2013-01-10 20:21:42
nwsuafliu
木蟲 (著名寫手)
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Carena: 金幣+1, 感謝應(yīng)助 2013-01-12 21:55:16
qq156437683: 金幣+7, 翻譯EPI+1, ★有幫助 2013-01-23 10:45:07
Carena: 金幣+1, 感謝應(yīng)助 2013-01-12 21:55:16
qq156437683: 金幣+7, 翻譯EPI+1, ★有幫助 2013-01-23 10:45:07
| 1H NMR spectrum showed two doublets around d=8.15ppm and d=7.31ppm, respectively. They were yielded from coupling of two neighboring H on benzene, both of which with 12 H. d=10.19 ppm indicates the chemical shift of H on primary amine, whereas d=7.31 ppm and 7.10ppm is the H shift on benzene. The presence of doublet at each shift indicated that contrapuntal nitro on benzene is substituted. |
3樓2013-01-10 21:05:50
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