A new solvent suppression method via radiation damping effect
A new solvent suppression method via radiation damping effect
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DOI：
10.1088/1674-1056/20/11/118201
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发表时间：
2011-11
影响因子：
1.7
通讯作者：
崔晓红;彭凌;张振敏;蔡淑惠;陈忠
中科院分区：
文献类型：
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作者：
崔晓红;彭凌;张振敏;蔡淑惠;陈忠
溶液样品中主要溶剂引起的辐射衰减效应可以用来抑制溶剂信号。在辐射衰减作用下，溶质自旋和溶剂自旋的进动路径和回到平衡态的速率不同。本文针对核磁共振谱中的溶剂抑制问题，设计了一系列利用辐射衰减的脉冲序列。与水门法相比，辐射阻尼法不会对溶剂附近的溶质信号产生影响。一维(1D)~1H核磁共振、二维(2D)gCOSY和J分辨实验结果表明，在一维和二维核磁共振谱中，通过辐射衰减效应抑制溶剂是可行的。
Radiation damping effects induced by the dominated solvent in a solution sample can be applied to suppress the solvent signal. The precession pathway and rate back to equilibrium state between solute and solvent spins are different under radiation damping. In this paper, a series of pulse sequences using radiation damping were designed for the solvent suppression in nuclear magnetic resonance (NMR) spectroscopy. Compared to the WATERGATE method, the solute signals adjacent to the solvent would not be influenced by using the radiation damping method. The one-dimensional (1D) 1H NMR, two-dimensional (2D) gCOSY, and J-resolved experimental results show the practicability of solvent suppression via radiation damping effects in 1D and 2D NMR spectroscopy.