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freud1939木虫 (正式写手)
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In the 29Si NMR spectrum, only two signals were observed-one was determined to be due to Et3SiCl (against authentic sample), and the other, at 22.9 ppm, showed distinct satellites due to Pt coupling with J PtSi =1014 Hz. satellite一词怎么理解？ |
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感谢参与，应助指数 +1
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2楼2013-04-23 12:26:53
【答案】应助回帖
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感谢参与，应助指数 +1
freud1939: 金币+10, ★★★★★最佳答案 2013-04-23 13:12:06
hanches: 金币+1, 很专业，谢谢应助~~ 2013-04-23 15:58:18
感谢参与，应助指数 +1
freud1939: 金币+10, ★★★★★最佳答案 2013-04-23 13:12:06
hanches: 金币+1, 很专业，谢谢应助~~ 2013-04-23 15:58:18
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In the 29Si NMR spectrum, only two signals were observed-one was determined to be due to Et3SiCl (against authentic sample), and the other, at 22.9 ppm, showed distinct satellites due to Pt coupling with J PtSi =1014 Hz. 这个可是绝对没有写错. 确实是satellite, 意思是卫星峰. 这种卫星峰在核磁或电子自旋共振中是常见的．产生的原因很多，比如如果做核磁时overspin就会在中心峰等距离的两边各有一个satellite peak; 还有这里的这种耦合作用．也会出现同样的satellite peaks．因为距离相等，很容易区分． 电子自旋共振中也会出现这样的情况，比如C13的satellite peaks． 你百度或Goggle 的话，就会知道． 比如： http://dict.cnki.net/h_52233586000.html |
3楼2013-04-23 12:43:51