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首页> 外文期刊>Advanced Functional Materials >Analysis of Metallo-Supramolecular Systems Using Single-Molecule Force Spectroscopy
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Analysis of Metallo-Supramolecular Systems Using Single-Molecule Force Spectroscopy

机译：使用单分子力谱分析金属-超分子系统

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摘要

Single-molecule force spectroscopy has been used for the investigation of the rupture behavior of individual metallo-supramolecular system. For this purpose, a specifically designed unsymmetrical α,w-functionalized poly(ethylene oxide) has been employed for mono-termination with a terpyridien ligand and subsequently for the attachment onto atomic force microscopy (AFM) tips and microscope slide substrates. Metallo-supramolecular complexes were formed by the use of ruthenium(III)-ruthenium(II) chemistry. Vertical stretching with the AFM cantilever ruptured the coordinative bonds. The rupture force of individual bisterpyridine ruthenium(II) complexes was determined to be 95 pN at a force loading rate of 1 nNs~(-1). Simultaneous rupturing of multiple parallel metallo-supramolecular bonds was also observed. Monte Carlo simulations corroborated the experimental observations. The presented results lay the basis for the application of such metallo-supramolecular systems in advanced functional nanomaterials.
机译：单分子力谱已用于研究单个金属-超分子系统的断裂行为。为了这个目的，已经使用专门设计的不对称的α，w-官能化的聚环氧乙烷用于与萜啶配体的单端接，并且随后用于附着在原子力显微镜（AFM）尖端和显微镜载玻片上。金属-超分子配合物是通过使用钌（III）-钌（II）化学方法形成的。原子力显微镜悬臂的垂直拉伸破坏了配位键。在力加载速率为1 nNs〜（-1）的情况下，确定了单独的双吡啶吡啶（II）配合物的破裂力为95 pN。还观察到多个平行的金属-超分子键同时断裂。蒙特卡洛模拟证实了实验观察。提出的结果为这种金属-超分子系统在先进功能纳米材料中的应用奠定了基础。

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  • 来源
    《Advanced Functional Materials》 |2003年第8期|p. 615-620|共6页
  • 作者

    Michael Kudera; Christian Eschbaumer; Hermann E. Gaub; Ulrich S. Schubert;

  • 作者单位

    Lehrstuhl fur Angewandte Physik, Center for Nanoscience Ludwig-Maimilians-Universitat Munchen AmalienstraBe 54, D-80799 Munchen Germany;

    Laboratory of Macromolecular Chemistry and Nanoscience Eindhoven University of Technology and Dutch Polymer Institute P.O.Box NL-5600 MB Eindhoven The Netherlands;

    Lehrstuhl fur Angewandte Physik, Center for Nanoscience Ludwig-Maimilians-Universitat Munchen AmalienstraBe 54, D-80799 Munchen Germany;

    Laboratory of Macromolecular Chemistry and Nanoscience Eindhoven University of Technology and Dutch Polymer Institute P.O.Box NL-5600 MB Eindhoven The Netherlands;

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  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
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