• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Coordination Geometry of the Copper-Pyridine Complex in Frozen Solution As Studied by Proton and Deuterium Two-Dimensional Hyperfine Sublevel Correlation Electron Spin Resonance Spectroscopy
【24h】

Coordination Geometry of the Copper-Pyridine Complex in Frozen Solution As Studied by Proton and Deuterium Two-Dimensional Hyperfine Sublevel Correlation Electron Spin Resonance Spectroscopy

机译：质子和氘二维超细亚级相关电子自旋共振光谱研究的冷冻溶液中铜-吡啶配合物的配位几何

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 coordination geometry of the tetrapyridine-copper(Ⅱ) complex in frozen solution is investigated by proton and deuterium two-dimensional hyperfine sublevel correlation spectroscopy (HYSCORE) electron spin resonance experiments. In particular, the deuterium experiment demonstrates the potential of this method, which lies in the superior spectral resolution of the two-dimensional spectra. This allows us to resolve deuterium nuclear quadrupole splittings of the cross peak ridges even in orientationally disordered systems, which in turn yield structural information about the overall complex symmetry. Proton and deuterium experiments show pronounced cross peak ridges from protons and deuteriums at the C2 and C6 carbon atoms of the pyridine molecule. The coordination geometry within the complexes could be deduced from orientation- selective deuterium spectra. Severe deviations from the D↓(4h) complex symmetry were found in such a way that the pyridine molecules are arranged with their molecular mirror plane perpendicular to the complex plane. The complex geometry experiences a significant variance with respect to the Cu-N bond directions due to random spatial constraints induced by solvent molecules.
机译：通过质子和氘的二维超细亚水平相关能谱（HYSCORE）电子自旋共振实验研究了四吡啶-铜（Ⅱ）配合物在冷冻溶液中的配位几何。特别地，氘实验证明了这种方法的潜力，这在于二维光谱的优异光谱分辨率。这使我们即使在定向无序的系统中也可以解决交叉峰脊的氘核四极分裂，从而产生有关整体复杂对称性的结构信息。质子和氘的实验表明，在吡啶分子的C2和C6碳原子上，质子和氘具有明显的交叉峰脊。配合物内的配位几何形状可以从取向选择性氘光谱中推导出来。发现与D↓（4h）复杂对称性存在严重偏差，使得吡啶分子的分子镜面垂直于复杂平面排列。由于溶剂分子引起的随机空间约束，复杂的几何形状在Cu-N键方向上经历了明显的变化。

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