Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/6623
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Leigh, William J. | - |
dc.contributor.author | Fahie, James Brian | - |
dc.date.accessioned | 2016-02-09T15:57:45Z | - |
dc.date.available | 2014-06-18T16:36:14Z | - |
dc.date.available | 2016-02-09T15:57:45Z | - |
dc.date.created | 2010-06-11 | en_US |
dc.date.issued | 1989-04 | - |
dc.identifier.other | opendissertations/1929 | en_US |
dc.identifier.other | 2972 | en_US |
dc.identifier.other | 1353353 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/6623 | - |
dc.description.abstract | <p>The direct solution photochemistry of 1,3,3-trimethylcyclopropene and 1-t-butyl-3,3-dimethylcyclopropene has been investigated. Primary photoproducts consisting of alkynes, allenes, and 1,3-dienes are formed from vinylcarbene intermediates, a result of cleavage of the C₁ - C₃ or C₂ - C₃ bond. Cleavage of the more substituted (C₁ - C₃) bond to yield a vinylcarbenes can account for > 80% of observed products. Most of the products are formed via 1,2- and 1,4-hydrogen migrations from the intermediate vinylcarbenes.</p> <p>Photolysis of 1,3,3-trimethylcyclopropene-1-¹³C supports the intermediacy of vinylcarbenes in product formation from singlet excited cyclopropenes. In addition, evidence which strongly suggests the importance of a second pathway for formation of alkyne products from alkylcyclopropenes has been obtained. This pathway involves the intermediacy of vinylidene, formed by 1,2-hydrogen migration/ring opening (sequential or concened) from the singlet excited-state of cyclopropene.</p> | en_US |
dc.subject | Chemistry | en_US |
dc.title | Deuterium NMR Studies of Guest Solubilization in Liquid Crystals/Photochemistry of Cyclopropenes | en_US |
dc.contributor.department | Chemistry | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Items in MacSphere are protected by copyright, with all rights reserved, unless otherwise indicated.