Synthesis and properties of novel cage-functionalized crown ethers and cryptands.

A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane "cage" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A computational study of a series of cage-functionalized cryptands and their alkali metal-complexes was performed. The X-ray crystal structure of a K+-complexed bis-cage-annulated 20-crown-6 was obtained. The associated picrate anion was found to be intimately involved in stabilization of the host-guest complex. The interaction energy between the host-guest complex and picrate anion has been calculated, and the energy thereby obtained has been corrected for basis set superposition error.

Grantor dc:publisher

University of North Texas

Year dc:date

2001

Author dc:creator

• Hazlewood, Anna

Contributors dc:contributor

• Marchand, Alan P.
• Marshall, Paul, 1960-
• Thomas, Ruthanne D.

• Crown ethers.
• Cyclic compounds.
• novel cryptand
• Rb+ and Cs+
• Host-guest interactions
• Selective metal cation complexation
• Crown ether synthesis

Statement dc:rights

• Public
• Copyright
• Hazlewood, Anna
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 51196783
https://digital.library.unt.edu/ark:/67531/metadc2896/
ark: ark:/67531/metadc2896

OAI identifier oai:identifier

info:ark/67531/metadc2896