Use this URL to cite or link to this record in EThOS: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418373 |
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Title: | Singlet oxygen sensitisation in supercritical fluids | ||||||
Author: | Patel, Manisha |
ISNI:
0000 0001 3475 8950
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Awarding Body: | Loughborough University | ||||||
Current Institution: | Loughborough University | ||||||
Date of Award: | 2005 | ||||||
Availability of Full Text: |
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Abstract: | |||||||
Supercritical fluids have been the subject of much recent interest as solvents in which to study fundamental photochemical reactions, since they allow, through changes in pressure and temperature, changes in a number of solvent parameters without changing chemical identity. As a result it is possible to control or tune a reaction by adjusting temperature and/or pressure. Ground state molecular oxygen (3Σg-) is a potent quencher of electronically excited states of molecules. Transient absorption of triplet benzophenone (3BP) has been studied as a function of temperature and pressure, to investigate the reactivity of triplet benzophenone toward molecular oxygen, in supercritical carbon dioxide. The spin statistical factors suggests a maximum of 4/9 possible pathways result in quenching for two triplets, proceeding either via energy transfer to molecular oxygen (1/9) or via intersystem crossing to the ground state (3/9).
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Supervisor: | Not available | Sponsor: | EPSRC | ||||
Qualification Name: | Thesis (Ph.D.) | Qualification Level: | Doctoral | ||||
EThOS ID: | uk.bl.ethos.418373 | DOI: | Not available | ||||
Keywords: | Chemical Sciences not elsewhere classified | ||||||
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