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首页> 外文学位 >MID-INFRARED VIBRATIONAL CIRCULAR DICHROISM AND APPLICATIONS OF THE COUPLED OSCILLATOR MODEL.
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MID-INFRARED VIBRATIONAL CIRCULAR DICHROISM AND APPLICATIONS OF THE COUPLED OSCILLATOR MODEL.

机译：中红外振动圆二色性及其耦合振荡器模型的应用

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摘要

Vibrational Circular Dichroism (VCD) measurements in the newly accessible mid-infrared region, down in energy to 900 cm('-1), is made possible by using a carbon rod furnace, a HgCdTe detector, a ZnSe modulator and by modifying some optical components. The experimental design of this new VCD spectrometer is discussed in detail.;The VCD spectra of optically active dimethyltartrate and related molecules are used to test and demonstrate the application of a simple theory for VCD, called the "Degenerate Coupled Oscillator" (DCO) model. Some conformational information regarding dimethyltartrate in a dilute, nonhydrogen-bonding solution is drawn from VCD and NMR results.;The VCD spectra of CH(,3) deformation modes of phenylethylamine, phenylethyl alcohol, phenylethyl isocyanate and related molecules are measured. They are discussed using the fixed partial charge model of VCD and are compared with the results obtained from Raman circular intensity differential (CID) scattering experiments.;The DCO model is also used to interpret the VCD spectra of (-) 2,2'-dimethyl 6,6'-diaminobiphenyl in terms of its twist angle. Finally VCD spectra of some chiral phosphamide compounds are also presented. Attempts are made to correlate VCD results with the absolute configuration structure of these compounds.
机译：通过使用碳棒炉，HgCdTe检测器，ZnSe调制器并通过修改一些光学元件，可以在新近进入的中红外区域（能量降至900 cm（'-1））进行振动圆二色性（VCD）测量组件。对该新型VCD光谱仪的实验设计进行了详细讨论。；光学活性酒石酸二甲基酒石酸酯和相关分子的VCD光谱用于测试和演示VCD的简单理论，即“简并耦合振荡器”（DCO）模型的应用。 。从VCD和NMR结果中获得了有关稀的，非氢键溶液中酒石酸二甲酯的一些构象信息;;测量了苯乙胺，苯乙醇，异氰酸苯乙酯和相关分子的CH（，3）变形模式的VCD光谱。使用VCD的固定局部电荷模型对它们进行了讨论，并与从拉曼圆强度微分（CID）散射实验获得的结果进行了比较。DCO模型还用于解释（-）2,2'-的VCD光谱。就其扭转角而言，是二甲基6,6'-二氨基联苯。最后，还给出了一些手性磷酰胺化合物的VCD光谱。试图将VCD结果与这些化合物的绝对构型相关联。

著录项

  • 作者

    SU, ERIC CHEN NAN.;

  • 作者单位

    University of Illinois at Chicago.;

  • 授予单位 University of Illinois at Chicago.;
  • 学科 Physical chemistry.
  • 学位 Ph.D.
  • 年度 1982
  • 页码 199 p.
  • 总页数 199
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 遥感技术;
  • 关键词

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