Calix[6]azacryptand Ligand with a Sterically Protected Tren-Based Coordination Site for Metal Ions
Author(s)
Zahim, Sara
Evano, Gwilherm
Jabin, Ivan
Wickramasinghe Weerakkodi Appuhamilage, Lasantha A
Schrock, Richard Royce
Mueller, Peter
Date Issued
February 2016
Journal
Organic Letters
Publisher
American Chemical Society (ACS)
Citation
Zahim, Sara et al. “Calix[6]azacryptand Ligand with a Sterically Protected Tren-Based Coordination Site for Metal Ions.” Organic Letters 18, 7 (March 2016): 1570–1573 © 2016 American Chemical Society
Version
Author's final manuscript
Abstract
A new calix[6]azacryptand ligand has been prepared in six steps starting from 1,3,5-trismethoxycalix[6]arene. An X-ray study shows that this ligand has a sterically protected tren-based binding site at the bottom of a polyaromatic bowl and ether sites around its rim. It binds Zn²⁺ to give a complex in which zinc is in a trigonal bipyramidal geometry with a water bound in one apical position and two additional hydrogen-bonded waters that fill the calixarene cavity.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
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DOI of Published Version
https://doi.org/10.1021/acs.orglett.6b00410
