dc.contributor.advisor |
Clyburne, Jason A. C. (Jason Alexander Cameron), 1968- |
|
dc.creator |
Murphy, Luke Joseph |
|
dc.date.accessioned |
2014-07-21T14:51:02Z |
|
dc.date.available |
2014-07-21T14:51:02Z |
|
dc.date.issued |
2014 |
|
dc.identifier.other |
QD181 C15 M87 2014 |
|
dc.identifier.uri |
http://library2.smu.ca/xmlui/handle/01/25828 |
|
dc.description |
xvi, 164 leaves : ill. (some col.) ; 29 cm. |
|
dc.description |
Includes abstract. |
|
dc.description |
Includes bibliographical references (leaves 144-164). |
|
dc.description.abstract |
The cyanoformate ion, speculated to be an intermediate by-product in the biosynthesis of ethylene in plants for decades but never observed, was successfully isolated for the first time as its tetraphenylphosphonium salt ([PPh[subscript 4]][NCCO[subscript 2]]). Full spectroscopic and crystallographic characterization of [PPh[subscript 4]][NCCO[subscript 2]] is provided, including characterization of [superscript 13]C-labelled isotopologues. In situ infrared spectroscopic analysis of the decomposition of cyanoformate in various solvents has revealed that cyanoformate will dissociate into CN- and CO[subscript 2] in higher dielectric media. The active site of 1-aminocyclopropane-1-carboxylic acid oxidase (ACC oxidase) bears an iron atom which may be protected from produced cyanide by its complexation with CO[subscript 2] as cyanoformate. When cyanoformate migrates out of the active site of the enzyme to the higher dielectric cytosol, it then dissociates, producing CN[superscript -] or HCN, which is subsequently metabolized. |
en_CA |
dc.description.provenance |
Submitted by Trish Grelot (trish.grelot@smu.ca) on 2014-07-21T14:51:02Z
No. of bitstreams: 1
murphy_luke_j_masters_2014.pdf: 3180594 bytes, checksum: 5413a385a090ef902945ec8eb2d809a7 (MD5) |
en |
dc.description.provenance |
Made available in DSpace on 2014-07-21T14:51:02Z (GMT). No. of bitstreams: 1
murphy_luke_j_masters_2014.pdf: 3180594 bytes, checksum: 5413a385a090ef902945ec8eb2d809a7 (MD5) |
en |
dc.language.iso |
en |
en_CA |
dc.publisher |
Halifax, N.S. : Saint Mary's University |
|
dc.subject.lcc |
QD181.C15 |
|
dc.subject.lcsh |
Anions -- Analysis |
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dc.subject.lcsh |
Cyanides |
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dc.subject.lcsh |
Amino compounds |
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dc.title |
Isolation and characterization of the elusive cyanoformate ion and the dependence of its stability on solvent dielectric constant |
en_CA |
dc.type |
Text |
en_CA |
thesis.degree.name |
Master of Science in Applied Science |
|
thesis.degree.level |
Masters |
|
thesis.degree.discipline |
Chemistry |
|
thesis.degree.grantor |
Saint Mary's University (Halifax, N.S.) |
|