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; ... Show more
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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.
Date issued
2016-02
URI
http://hdl.handle.net/1721.1/115119
Department
Massachusetts Institute of Technology. Department of Chemistry
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
ISSN
1523-7060
1523-7052
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