Direct and Quantitative Characterization of Dynamic Ligand Exchange between Coordination-Driven Self-Assembled Supramolecular Polygons

被引：78

作者：

Zheng, Yao-Rong ^{[1
]}

Stang, Peter J. ^{[1
]}

机构：

[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 10期

关键词：

GUEST EXCHANGE; CHEMISTRY; INTERCONVERSION; POLYMERS; SYMMETRY; ARCHITECTURES; CONSTRUCTION; EQUILIBRIUM; RECOGNITION; CHIRALITY;

D O I：

10.1021/ja809788x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The direct observation of dynamic ligand exchange between Pt-N coordination-driven self-assembled supramolecular polygons (triangles and rectangles) has been achieved using stable H-1/D-2 isotope labeling of the pyridyl donors and electrospray ionization mass spectrometry combined with NMR spectroscopy. Both the thermodynamic and kinetic aspects of such exchange processes have been established on the basis of quantitative mass spectral results. Further investigation has shown that the exchange is highly dependent on experimental conditions such as temperature, solvent, and the counteranions.

引用

页码：3487 / +

页数：4

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