• Login
    View Item 
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Synthesis and characterization of octasubstituted phthalocyanines

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    azu_td_3119968_sip1_m.pdf
    Size:
    12.19Mb
    Format:
    PDF
    Download
    Author
    Minch, Britt Austin
    Issue Date
    2004
    Keywords
    Chemistry, Organic.
    Advisor
    Armstrong, Neal R.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Substituted phthalocyanines (Pcs) have been studied intensely for decades as pigments because of their high molar absorptivities, thermal stability, and stability towards light exposure. These materials also show promise as electron and hole transport layers in a variety of device applications such as organic field effect transistors and photovoltaics. This dissertation describes the synthesis of several new phthalocyanines (Pcs) and the fabrication of highly ordered supramolecular assemblies. Efforts to increase the coherence of Pc assemblies have included the incorporation of side chains containing polymerizable and hydrogen bonding moieties. The synthesis of 2,3,9,10,16,17,23,24-octa thioether substituted Pcs was designed to allow the incorporation of diverse thioether side chains. The synthesis is shorter and uses milder conditions than the previous synthetic methods explored in the O'Brien and Armstrong groups. Serendipitously, the thioether linkage allow for chalcogen-chalcogen interactions, increasing the attraction of the Pcs sufficiently to provide for crystal growth. The order of the supramolecular materials has been examined in thin films as well as in solution. The UV-Visible and IR spectroscopic data, Langmuir-Blodgett (LB) film forming behavior, thermotropic properties, and photovoltaic properties are reported for each Pc derivative prepared. Although each compound prepared displays some degree of order, the degree to of this order is controlled by the nature of the side chain. The Pcs exhibit long range ordering on a macroscopic level, as can be seen from polarized optical microscopy, atomic force microscopy, IR, and X-ray diffraction techniques.
    Type
    text
    Dissertation-Reproduction (electronic)
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Graduate College
    Chemistry
    Degree Grantor
    University of Arizona
    Collections
    Dissertations

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.