Degree Type

Dissertation

Date of Award

2003

Degree Name

Doctor of Philosophy

Department

Chemistry

First Advisor

Thomas J. Barton

Abstract

This dissertation comprises two main research projects. The first project, presented in Chapter 1, involves the synthesis and thermochemistry of germacyclobutanes (germetanes). Four new germetanes (spirodigermetane, diallylgermetane, dichlorogermetane, and germacyclobutane) have been synthesized using a modified di-Grignard synthesis. Diallylgermetane is shown to be a useful starting material for obtaining other germetanes, particularly the parent germetane, germacyclobutane. The gas-phase thermochemistries of spirodigermetane, diallylgermetane and germacyclobutane have been explored via pulsed stirred-flow reactor (SFR) studies, showing remarkable differences in decomposition, depending on the substitution at the germanium atom.;The second project investigates the thermochemical, photochemical, and catalytic additions of several digermanes to acetylenes. The first examples of thermo- and photochemical additions of Ge-Ge bonds to C≡C are demonstrated. Mechanistic investigations are described and comparisons are made to analogous disilane addition reactions, previously studied in our group.

DOI

https://doi.org/10.31274/rtd-180813-9853

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Andrew Michael Chubb

Language

en

Proquest ID

AAI3118217

File Format

application/pdf

File Size

127 pages

Share

COinS