An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters
We report an experimental investigation of homochiral cluster formation in seeded molecular beam expansions of (2R,3R)-butanediol. Synchrotron radiation VUV photoionization measurements have been performed using a double imaging electron-ion spectrometer in various configurations and modes of operat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Institute of Physics
2017
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| Online Access: | https://eprints.nottingham.ac.uk/42523/ |
| _version_ | 1848796506962788352 |
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| author | Daly, Steven Powis, Ivan Garcia, Gustavo A. Tia, Maurice Nahan, Laurent |
| author_facet | Daly, Steven Powis, Ivan Garcia, Gustavo A. Tia, Maurice Nahan, Laurent |
| author_sort | Daly, Steven |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We report an experimental investigation of homochiral cluster formation in seeded molecular beam expansions of (2R,3R)-butanediol. Synchrotron radiation VUV photoionization measurements have been performed using a double imaging electron-ion spectrometer in various configurations and modes of operation. These include measurements of the cluster ion mass spectra and wavelength scanned ion yields and threshold electron spectra. Protonated cluster ions ranging up to n=7 have been observed and size-selected photoelectron spectra and photoelectron circular dichroism (PECD) have been recorded by velocity map imaging at a number of fixed photon energies. Translation temperatures of the cluster ions have been further examined by ion imaging measurements.
As well as the sequence of protonated clusters with integral numbers of butanediol monomer units, a second series with half-integral monomer masses is observed and deduced to result from a facile cleavage of a butanediol monomer moiety within the nascent cluster. This second sequence of half-integral masses displays quite distinct behaviours. PECD measurements are used to show that the half-integral mass clusters ions do not share a common parentage with whole integer masses. Using an analogy developed with simple theoretical calculations of butanediol dimer structures, it is inferred that the dissociative branching into integral and half-integral ion mass sequences is controlled by the presence of different butanediol monomer conformations within the hydrogen bonded clusters. |
| first_indexed | 2025-11-14T19:49:04Z |
| format | Article |
| id | nottingham-42523 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T19:49:04Z |
| publishDate | 2017 |
| publisher | American Institute of Physics |
| recordtype | eprints |
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| spelling | nottingham-425232020-05-08T09:45:24Z https://eprints.nottingham.ac.uk/42523/ An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters Daly, Steven Powis, Ivan Garcia, Gustavo A. Tia, Maurice Nahan, Laurent We report an experimental investigation of homochiral cluster formation in seeded molecular beam expansions of (2R,3R)-butanediol. Synchrotron radiation VUV photoionization measurements have been performed using a double imaging electron-ion spectrometer in various configurations and modes of operation. These include measurements of the cluster ion mass spectra and wavelength scanned ion yields and threshold electron spectra. Protonated cluster ions ranging up to n=7 have been observed and size-selected photoelectron spectra and photoelectron circular dichroism (PECD) have been recorded by velocity map imaging at a number of fixed photon energies. Translation temperatures of the cluster ions have been further examined by ion imaging measurements. As well as the sequence of protonated clusters with integral numbers of butanediol monomer units, a second series with half-integral monomer masses is observed and deduced to result from a facile cleavage of a butanediol monomer moiety within the nascent cluster. This second sequence of half-integral masses displays quite distinct behaviours. PECD measurements are used to show that the half-integral mass clusters ions do not share a common parentage with whole integer masses. Using an analogy developed with simple theoretical calculations of butanediol dimer structures, it is inferred that the dissociative branching into integral and half-integral ion mass sequences is controlled by the presence of different butanediol monomer conformations within the hydrogen bonded clusters. American Institute of Physics 2017-05-17 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/42523/1/IP%20Cluster_Paper_Clean.pdf Daly, Steven, Powis, Ivan, Garcia, Gustavo A., Tia, Maurice and Nahan, Laurent (2017) An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters. Journal of Chemical Physics, 147 (1). 013937. ISSN 1089-7690 http://aip.scitation.org/doi/abs/10.1063/1.4983139 doi:10.1063/1.4983139 doi:10.1063/1.4983139 |
| spellingShingle | Daly, Steven Powis, Ivan Garcia, Gustavo A. Tia, Maurice Nahan, Laurent An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title | An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title_full | An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title_fullStr | An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title_full_unstemmed | An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title_short | An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters |
| title_sort | imaging photoelectron-photoion coincidence investigation of homochiral 2r,3r-butanediol clusters |
| url | https://eprints.nottingham.ac.uk/42523/ https://eprints.nottingham.ac.uk/42523/ https://eprints.nottingham.ac.uk/42523/ |