Stimuli-Responsive Reversible Assembly of 2D and 3D Metallosupramolecular Architectures

被引:85
作者
Lusby, Paul J. [1 ]
Mueller, Peter [1 ]
Pike, Sarah J. [1 ]
Slawin, Alexandra M. Z. [2 ]
机构
[1] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland
[2] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland
基金
英国工程与自然科学研究理事会;
关键词
LIGAND; PRISMS; GUEST; HOST; CAGE;
D O I
10.1021/ja907297z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The discovery of interconvertible platinum coordination modes, which reveals and masks cis coordinating groups upon addition of acid and base, respectively, has been exploited to facilitate stimuli-responsive assembly and disassembly of both two- and three-dimensional metallosupramolecular architectures. Treatment of a binclear platinum complex with acid along with ditopic and tritopic donor ligands generated a molecular square and a trigonal prism, respectively, in good to high yield. These complexes were unambiguously identified using electrospray mass spectrometry, H-1 NMR spectroscopy, and X-ray crystallography. Both assemblies can be disassembled into their constituent parts simply by treatment with base, and the prism can be cycled between the assembled and disassembled states by the alternate addition of acid and base.
引用
收藏
页码:16398 / +
页数:6
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