Design and Synthesis of Novel Cage-Functionalized Crown Ethers: A New Class of Ag Complexants.

Three different types of cage crown ethers have been prepared and their complexation properties with Ag(I) have been studied. Atomic absorption, fluorescence quenching, and UV absorption have been used to study the interaction between the hosts (cage crown ethers) and guests (Ag+). For the cage-annulated crown ethers that contain aromatic rings, cation-π and π-π interactions may contribute significantly to the overall complexation ability of the host system. Piperazine groups may cooperate, and the piperazine nitrogen atoms provide unshared electrons, which may form a complex with Ag+. In addition, relatively soft donor atoms (e.g., Br) are well-suited for complexation with Ag+, which is a softer Lewis acid than alkali metal cations.

Grantor dc:publisher

University of North Texas

Year dc:date

2003

Author dc:creator

• Lai, Huiguo

Contributors dc:contributor

• Omary, Mohammad
• Marchand, Alan P.

• Crown ethers.
• complexation
• crown ethers
• cage compounds
• fluorescence quenching
• atomic absorption

Statement dc:rights

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

Language dc:language

English

Identifier

oclc: 53362722
https://digital.library.unt.edu/ark:/67531/metadc4314/
ark: ark:/67531/metadc4314

OAI identifier oai:identifier

info:ark/67531/metadc4314