...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of magnetic resonance >Experimental Characterization of Intermolecular Multiple-Quantum Coherence Pumping Efficiency in Solution NMR
【24h】

Experimental Characterization of Intermolecular Multiple-Quantum Coherence Pumping Efficiency in Solution NMR

机译：溶液核磁共振中分子间多量子相干泵浦效率​​的实验表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The behavior of intermolecular multiple-quantum coherences in a variety of simple liquids with different chemical and magnetic properties is investigated experimentally and modeled by numerical simulations based on modified Bloch equations. The effects of spin concentration, temperature, intramolecular conformational flexibility, chemical exchange, and spin-spin coupling on the formation of high-order coherences are examined. It is shown that any process that makes the Larmor frequency time-dependent may interfere with the formation of these coherences. Good agreement is achieved between experiments and simulation, using independently known values of the magnetization density, the rate constants for translational diffusion, spin-spin and spin-lattice relaxation, and radiation damping.
机译：实验研究了多种具有不同化学和磁性性质的简单液体中分子间多量子相干的行为，并基于改进的Bloch方程通过数值模拟对其进行了建模。研究了自旋浓度，温度，分子内构象柔韧性，化学交换和自旋-自旋偶联对高阶相干性形成的影响。结果表明，使拉莫尔频率与时间相关的任何过程都可能干扰这些相干的形成。使用磁化密度，平移扩散，自旋自旋和自旋晶格弛豫的速率常数和辐射衰减的独立已知值，在实验和仿真之间达成了良好的一致性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号