...
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Reorientational Dynamics of the Model Compound 1,2,3,4-Tetrahydro-5,6-dimethyl-1,4-methanonaphthalene in Neat Liquid from Temperature-Dependent ~(13)C Nuclear Magnetic Relaxation Data: Spectral Densities and Correlation Functions
【24h】

Reorientational Dynamics of the Model Compound 1,2,3,4-Tetrahydro-5,6-dimethyl-1,4-methanonaphthalene in Neat Liquid from Temperature-Dependent ~(13)C Nuclear Magnetic Relaxation Data: Spectral Densities and Correlation Functions

机译:来自温度依赖性〜(13)C核磁弛豫数据的纯净液体中模型化合物1,2,3,4-四氢-5,6-二甲基-1,4-甲基萘的重定向动力学:光谱密度和相关函数

获取原文
获取原文并翻译 | 示例
           

摘要

The reorientational motion of the hydrocarbon 1,2,3,4-tetrahydro-5,6-dimethyl-1,4-methanonaphthalene (5,6-Me_2THMN) was studied over a wide range of temperature by the evaluation of ~(13)C spin-lattice relaxation rates and NOE factors. The data from measurements at 22.63, 75.47 and 100.62 MHz were fitted to spectral densities introduced by Bloembergen, Purcell and Pound (1948), Davidson and Cole (1951), and for the first time, by a new spectral density derived from a Tricomi correlation function recently introduced by Zeidler (1991). For the temperature dependence of the correlation times, a Vogel-Fulcher-Tammann equation was applied. To obtain a reasonable fit with either Bloembergen-Purcell-Pound or Cole-Davidson spectral densities, it was necessary to apply the generalized order parameter from the approach by Lipari and Szabo (1982). The same quality of fit was achieved by the use of the Tricomi spectral density, although in this case it was not necessary to employ the Lipari-Szabo approach.
机译:通过〜(13)的评估,研究了1,2,3,4-四氢-5,6-四甲基-1,4-甲基萘(5,6-Me_2THMN)烃的重取向运动C自旋晶格弛豫率和NOE因子。来自22.63、75.47和100.62 MHz的测量数据与Bloembergen,Purcell和Pound(1948),Davidson和Cole(1951)引入的光谱密度相适应,并且首次采用了Tricomi相关性得出的新光谱密度。 Zeidler(1991)最近引入了该功能。对于相关时间的温度依赖性,应用了Vogel-Fulcher-Tammann方程。为了获得与布隆伯格根-珀塞尔-庞德或科尔-戴维森光谱密度的合理拟合,有必要应用Lipari和Szabo(1982)方法的广义阶次参数。通过使用Tricomi光谱密度可以达到相同的拟合质量,尽管在这种情况下不必采用Lipari-Szabo方法。

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