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zgjs

金虫 (小有名气)

[求助] 有关红外术语翻译

the most commonly used way to characterize the strength of Lewis-coordinated py is the observation of the IR spectral upward (blue) shift undergone by the 8a ring mode as a consequence of the N lone pair charge release to the adsorbing sites. The 8a ring mode, centered at ~1580 cm -1 and almost unresolved from the partner 8b mode in liquid py, shifts to~1590 cm -1in the case of a plain H-bonding (19) or of coordination to weak Lewis acidic sites [e.g., Al sites(16)], and can shift as much as to ~1625cm -1 in the case of coordination to very strong Lewis acidic centers [e.g., Znc~ (20)].
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phu_grassman

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快乐岛、布吉岛岛主

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爱与雨下: 金币+1 2014-09-02 20:09:38
zgjs(RXMCDM代发): 金币+4, 多谢应助! 2014-10-04 23:30:16
RXMCDM: 翻译EPI+1 2014-10-04 23:30:21
表征Lewis配位吡啶强度的最常用的方法是通过红外光谱观察其8a环振动模的蓝移,这一蓝移是由N上的孤对电电荷释放到接受位点位点所引起。8a环振动模以~1580 cm-1为中心波速,在液态吡啶中,由于氢键或弱刘易斯酸位点的配位会位移到~1590 cm-1处,与其8b振动模几乎不可分辨。
2楼2014-09-02 19:45:23
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cmds1907

铁杆木虫 (著名写手)

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爱与雨下: 金币+1 2014-09-02 20:09:47
zgjs(RXMCDM代发): 金币+1, 多谢应助! 2014-10-04 23:30:36
RXMCDM: 翻译基本到位,但表述受英语影响较大。 2014-10-04 23:35:37
用于表征路易斯-络合py强度的最常用的方式是观测红外光谱向高波数移动(蓝移),这是由于N孤对电荷释放吸附位经历8a环模式所致。8a环模式,集中在1580波数,而在液体py中几乎无法分辨出对应的8 b模式;在一个普通氢键(19)或络合弱路易斯吸附位(如,Al吸附位(16)]的情况下,则迁移到~ 1590波数;在络合很强的路易斯酸性中心的情况下,将尽可能迁移到~ 1625波数 (如,Znc ~(20)]。
3楼2014-09-02 20:04:33
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