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Doctoral Dissertation - Thome - 2016 - (FINAL).pdf (11.28 MB)
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CHLORINE/OXYGEN TRANSFER REACTIONS OF CYCLIC CHLOROPHOSPHAZENES
Author Info
Thome, Benjamin Steven
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=akron1470408723
Abstract Details
Year and Degree
2016, Doctor of Philosophy, University of Akron, Chemistry.
Abstract
The reactions of [PCl2N]3 with oxygen containing Lewis bases (O=E) such as hexamethylphosphoramide (HMPA) and triethylphosphine oxide result in Cl/O exchange. The reactions occur via a two-step process which involves 1) formation of an intermediate salt [P3N3Cl5O] [E-Cl]+ and 2) attack by more O=E to form P3N3Cl4O-O=E and [E-Cl]+[Cl]-. In addition to spectroscopic characterization, both phosphazene products of the HMPA reactions have been characterized by X-ray crystallography. As shown by reaction chemistry and the Guttmann-Beckett Lewis acidity scale, the P=O of the phosphazene ring in P3N3Cl4O-O=E has a strong Lewis acid character. We also discuss attempts to use other O=E and more vigorous reaction conditions with the goal of preparing [PON]3 or its base-stabilized adducts. Such molecules could be precursors to novel PNO materials.
Committee
Claire Tessier, Ph.D. (Advisor)
Wiley Youngs, Ph.D. (Committee Member)
Christopher Ziegler, Ph.D. (Committee Member)
Chrys Wesdemiotis, Ph.D. (Committee Member)
Peter Rinaldi, Ph.D. (Committee Member)
Pages
357 p.
Subject Headings
Chemistry
Keywords
Phosphazenes
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Citations
Thome, B. S. (2016).
CHLORINE/OXYGEN TRANSFER REACTIONS OF CYCLIC CHLOROPHOSPHAZENES
[Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1470408723
APA Style (7th edition)
Thome, Benjamin.
CHLORINE/OXYGEN TRANSFER REACTIONS OF CYCLIC CHLOROPHOSPHAZENES.
2016. University of Akron, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=akron1470408723.
MLA Style (8th edition)
Thome, Benjamin. "CHLORINE/OXYGEN TRANSFER REACTIONS OF CYCLIC CHLOROPHOSPHAZENES." Doctoral dissertation, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1470408723
Chicago Manual of Style (17th edition)
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Document number:
akron1470408723
Download Count:
299
Copyright Info
© 2016, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.