Calixazacryptand 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; ... Show more Show less
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A new calixazacryptand ligand has been prepared in six steps starting from 1,3,5-trismethoxycalixarene. 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.
DepartmentMassachusetts Institute of Technology. Department of Chemistry
American Chemical Society (ACS)
Zahim, Sara et al. “Calixazacryptand Ligand with a Sterically Protected Tren-Based Coordination Site for Metal Ions.” Organic Letters 18, 7 (March 2016): 1570–1573 © 2016 American Chemical Society
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