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Publication Date

2012-07-27

Availability

UM campus only

Embargo Period

2012-07-27

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PHD)

Department

Chemistry (Arts and Sciences)

Date of Defense

2012-07-11

First Committee Member

Angel E. Kaifer

Second Committee Member

Burjor Captain

Third Committee Member

Rajeev Prabhakar

Fourth Committee Member

Adam R. Urbach

Abstract

This dissertation mainly investigate the host-guest chemistry in different supramolecular systems using nitroxide as spin probes. Two topics in supramolecular chemistry are involved in this dissertation: (a) self-assembled hexameric molecular capsules and (b) cucurbituril complexes. In addition to this, the author also describes a new M4L6 tetrahedral metal-organic cage formed by sulfate-templated self-assembly. The first chapter in this dissertation gives a brief introduction to supramolecular chemistry. The second chapter describes the EPR and NMR investigation on the interactions of nitroxide probes with resorcin[4]arene molecular capsules. Four chapters of this dissertation deal with the complexation behavior of cucurbit[n]urils (n = 7,8) with different ferrocene and cobaltocenium nitroxide derivatives. The last chapter describes the preparation and characterization of a M4L6 tetrahedral molecular cage formed by both sulfate-templated and subcomponent self-assembly.

Keywords

Supramolecular Chemistry; EPR; Nitroxide; Spin Probes; Cucurbituril; Self-Assembly

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