Go to  Advanced Search

Design of star-shaped organoiron oligomers with azo chromophores

Show full item record

Files in this item

Files Size Format Description   View
ubc-2011-spring-Man-Ding.pdf 5.745Mb Adobe Portable Document Format   View/Open
 
Title: Design of star-shaped organoiron oligomers with azo chromophores
Author: Ding, Man
Degree Master of Science - MSc
Program Chemistry
Copyright Date: 2011
Publicly Available in cIRcle 2011-08-11
Abstract: The synthesis and characterization of novel star-shaped oligomers containing cationic η⁶-chloroarene-η⁵-cyclopentadienyliron(II) complexes functionalized with azo chromophores were described in the thesis. Star-shaped macromolecules and dendrimers are of great interest for their application in light-harvesting systems, drug delivery, catalysis, and solvents. The incorporation of cationic η⁶-chloroarene-η⁵-cyclopentadienyliron moieties can enhance solubility and facilitate nucleophilic aromatic substitution and addition reactions due to the intense electron-withdrawing ability of the iron center. On the other hand, the azo dye chromophore in the oligomers has many applications due to its unique photophysical properties and acid-sensing capabilities. Controlled synthetic methods involving both convergent and divergent approaches were employed to give distinct symmetrical branches that alternate between organoiron complexes and azobenzene moieties. Preparation of these molecules was achieved via metal-mediated nucleophilic aromatic substitutions and Steglich esterifications. These oligomers and their precursors were characterized through nuclear magnetic resonance spectroscopy, infrared spectroscopy, ultraviolet-visible spectroscopy and cyclic voltammetry.
URI: http://hdl.handle.net/2429/36649
Scholarly Level: Graduate

This item appears in the following Collection(s)

Show full item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893