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ypduan

金虫 (小有名气)

[交流] 求助,关于核磁分析时

3.87(8,3H,CH3);4.42(t,2H,
CH2);4.60(t,2H,CH2);6.99~7.57(m,7H,
A广H);8.80(8,1H,甲基咪唑环上C—H)

如上所示,3.87等为化学位移,但是括号中的三部分不知道表示为什么?
像m、 s、 t等
请高手赐教!
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susanlxlx

金虫 (小有名气)

★ ★
ypduan(金币+2,VIP+0):多谢
m多重峰  dd :双二重峰  q:四重峰    d二重峰
s单峰
t三重峰
建议找一本波谱书来看
4.42(t,2H(2个H),
CH2(4.42代表是CH2的化学位移);
2楼2008-06-26 14:04:10
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