Please use this identifier to cite or link to this item: https://doi.org/10.1021/ol026780t
Title: A Unique Spherical Molecular Host with D2d Symmetry. A Novel Intramolecular Kinetic Equilibrium in Metal Ion Complexation between Two Crown Ethers
Authors: Xu, J.
Lai, Y.-H. 
He, C.
Issue Date: 31-Oct-2002
Citation: Xu, J., Lai, Y.-H., He, C. (2002-10-31). A Unique Spherical Molecular Host with D2d Symmetry. A Novel Intramolecular Kinetic Equilibrium in Metal Ion Complexation between Two Crown Ethers. Organic Letters 4 (22) : 3911-3914. ScholarBank@NUS Repository. https://doi.org/10.1021/ol026780t
Abstract: (Matrix Presented) A spherical host with D2d symmetry consisting of a tetrathia[3.3.3.3]paracyclophane and two 18-crown-6 moieties was synthesized. Its crystal structure shows a central cavity with a diameter of 1.96 Å and a depth of 6.75 Å. A Na+ ion could rest in the cavity center but prefers core binding to external binding in one of the crown units. An intramolecular kinetic equilibrium was reached with the Na+ ion switching between the two crown units with an energy barrier of 14.1 ± 3 kcal/mol.
Source Title: Organic Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/93030
ISSN: 15237060
DOI: 10.1021/ol026780t
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

3
checked on Jul 16, 2018

WEB OF SCIENCETM
Citations

2
checked on Jul 16, 2018

Page view(s)

44
checked on Jun 1, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.