Toward the Syntheses of Three Dimensional Cage-like Crown Ethers
Date Issued
2004
Date
2004
Author(s)
Liu, Yen-Lin
DOI
zh-TW
Abstract
It is known that dibenzylammonium ion (DBA+) can complex to dibenzyl[24]crown-8 (DB24C8) and generate the corresponding pseudorotaxane complexes in solution based on the [O…H—N+] hydrogen bonding interaction between both components. We plan to synthesize several three-dimensional cage-liked crown ethers, which can complex to their proper guest not only with the assistance of the multiple hydrogen bonding interactions but also the π-π stacking interaction between the aromatic rings of the cage-liked crown ethers and guests. The binding strength between these crown ethers and their proper guests is expected to be much stronger than that between DB24C8 and DBA+ based on the multivalency concept. The extremely strong binding strength in this new recognition system certainly will allow us to construct many complicated functional interlocked molecules in the future.
Subjects
冠醚
籠狀分子
crown ether
cage
Type
thesis
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