| CRAZED与COSY实验中的偶极场效应 |
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| 引用本文： | 张钦塔,沈桂平,林雁勤,陈忠. CRAZED与COSY实验中的偶极场效应[J]. 宜春学院学报, 2012, 34(4): 19-21,105 |
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| 作者姓名： | 张钦塔 沈桂平 林雁勤 陈忠 |
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| 作者单位： | 厦门大学电子科学系,福建厦门,361005 |
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| 基金项目： | 中央高校基本科研业务费项目(2010121010) |
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| 摘 要： | 文章简单描述了高极化核自旋体系中分子间多量子相干(iMQC)有关的实验现象,详细讨论了在不同温度和不同梯度场强度下CRAZED和COSY(gCOSY)实验中的偶极场效应,实验结果表明梯度场、偶极场、分子自扩散等各种因素都会影响iMQC信号。
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| 关 键 词： | 核磁共振 分子间多量子相干 偶极场 扩散 |
Dipolar Field Effects in CRAZED and COSY Experiments |
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| ZHANG Qin-ta,SHEN Gui-ping,LING Yan-qin,CHEN Zhong. Dipolar Field Effects in CRAZED and COSY Experiments[J]. Journal of Yichun University, 2012, 34(4): 19-21,105 |
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| Authors: | ZHANG Qin-ta SHEN Gui-ping LING Yan-qin CHEN Zhong |
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| Affiliation: | (Departments of Electronic Science,Xiamen University,Xiamen 361005,China) |
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| Abstract: | The relevant experiment phenomena of intermolecular multiple-quantum coherence(iMQC) in highly polarized spin systems were briefly described in this paper.Dipolar effects in CRAZED and COSY(gCOSY) experiments at different temperature,different gradient strength were also discussed in detail.Experimental results suggest that factors including gradient,dipolar field,and molecular diffusion can affect iMQC signal. |
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| Keywords: | NMR intermolecular multiple-quantum coherence dipolar field diffusion |
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