| EPSRC Reference: |
GR/M66318/01 |
| Title: |
REACTION DYNAMICS AND VIBRONIC STRUCTURE OF MOLECULAR DICATIONS USING COINCIDENCE SPECTROSCOPY |
| Principal Investigator: |
Price, Professor SD |
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| Department: |
Chemistry |
| Organisation: |
UCL |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1999 |
Ends: |
31 October 2003 |
Value (£): |
208,947
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| EPSRC Research Topic Classifications: |
| Chemical Structure |
Gas & Solution Phase Reactions |
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| EPSRC Industrial Sector Classifications: |
| Chemicals |
Environment |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Molecular dipositive ions (dications) are metastable species which possess large internal energies. The applicant's previous work has shown that these species exhibit considerable chemical reactivity. This application proposes the development of a position-sensitive two-dimensional coincidence (PSTDC) spectrometer to probe, in unprecedented detail, the dynamics of these chemical reactions which, as the applicant's previous work has indicated, proceed via unusual mechanisms. The experiment involves measuring the flight time and momenta of the pair of ions formed in these reactions using a time of flight mass spectrometer and fast position-sensitive detector. From this data, high-quality Newton diagrams, product vibrational energy distributions and correlation dicagrams can be obtained as a function of collision energy. An extremely detailed probe of the reaction dynamics. The apparatus will also allow Doppler-free measurements of the kinetic energy of the product ions formed in non-dissociative electron transfer reactions of molecular dications. At the experimental resolutions, these kinetic energy measurements will provide the first vibrationally resolved spectroscopy of reactive dications such as CF++, HS++. The vibrational structure of these dications cannot be probed by existing experimental techniques but is required to understand their considerable chemical reactivity.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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