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qiaojuan

铁虫 (小有名气)

[求助] 帮忙看下我的H NMR图谱吧,谢谢!

审稿人说我的核磁图谱中3.2-3.3归属有问题,The solvent d6 –DMSO has HOD peak in that exact region. It is very unusual to see that kind of benzylic proton in the figure shifted to 3.2-3.3 ppm.
溶剂为DMSO,我是通过模拟核磁图谱推测的,不知道这样可以吗?
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superzhy

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图呢?
2楼2011-09-05 15:40:14
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qiaojuan

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引用回帖:
2楼: Originally posted by superzhy at 2011-09-05 15:40:14:
图呢?

我传了图,我自己可以看到,我再试试奥
3楼2011-09-05 15:43:10
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qiaojuan

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引用回帖:
2楼: Originally posted by superzhy at 2011-09-05 15:40:14:
图呢?

我再传一次

4楼2011-09-05 15:44:50
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erics080

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【答案】应助回帖

qiaojuan(金币+20): 谢谢! 2011-09-05 18:15:01
DMSO中水峰的位置在3.33,你的这个峰应该是水峰了
如果为了确认是否是水峰,可以做一个变温核磁,那么别的峰不会有变化,而水峰会发生位移的
.....
5楼2011-09-05 18:07:40
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