Electron attachment to molecules in a cluster environment
Low-energy dissociative electron attachment (DEA) to the CF 2 Cl 2 and CF 3 Cl molecules in a water cluster environment is investigated theoretically. Calculations are performed for the water trimer and water hexamer. It is shown that the DEA cross section is strongly enhanced when the attaching mol...
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| Veröffentlicht in: | The Journal of chemical physics 2012-05, Vol.136 (18), p.184301-184301-8 |
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| container_end_page | 184301-8 |
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| container_issue | 18 |
| container_start_page | 184301 |
| container_title | The Journal of chemical physics |
| container_volume | 136 |
| creator | Fabrikant, I. I. Caprasecca, S. Gallup, G. A. Gorfinkiel, J. D. |
| description | Low-energy dissociative electron attachment (DEA) to the CF
2
Cl
2
and CF
3
Cl molecules in a water cluster environment is investigated theoretically. Calculations are performed for the water trimer and water hexamer. It is shown that the DEA cross section is strongly enhanced when the attaching molecule is embedded in a water cluster, and that this cross section grows as the number of water molecules in the cluster increases. This growth is explained by a trapping effect that is due to multiple scattering by water molecules while the electron is trapped in the cluster environment. The trapping increases the resonance lifetime and the negative ion survival probability. This confirms qualitatively existing experiments on electron attachment to the CF
2
Cl
2
molecule placed on the surface of H
2
O ice. The DEA cross sections are shown to be very sensitive to the position of the attaching molecule within the cluster and the orientation of the electron beam relative to the cluster. |
| doi_str_mv | 10.1063/1.4706604 |
| format | Article |
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2
Cl
2
and CF
3
Cl molecules in a water cluster environment is investigated theoretically. Calculations are performed for the water trimer and water hexamer. It is shown that the DEA cross section is strongly enhanced when the attaching molecule is embedded in a water cluster, and that this cross section grows as the number of water molecules in the cluster increases. This growth is explained by a trapping effect that is due to multiple scattering by water molecules while the electron is trapped in the cluster environment. The trapping increases the resonance lifetime and the negative ion survival probability. This confirms qualitatively existing experiments on electron attachment to the CF
2
Cl
2
molecule placed on the surface of H
2
O ice. The DEA cross sections are shown to be very sensitive to the position of the attaching molecule within the cluster and the orientation of the electron beam relative to the cluster.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.4706604</identifier><identifier>PMID: 22583281</identifier><identifier>CODEN: JCPSA6</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>Clusters ; Cross sections ; Electron attachment ; Joining ; Mathematical analysis ; Survival ; Trapping ; Trimers</subject><ispartof>The Journal of chemical physics, 2012-05, Vol.136 (18), p.184301-184301-8</ispartof><rights>2012 American Institute of Physics</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-e73fe7808a6fa550f6ce9f62b74c6706f992aa83de6c6c7ff836758c923e99c23</citedby><cites>FETCH-LOGICAL-c407t-e73fe7808a6fa550f6ce9f62b74c6706f992aa83de6c6c7ff836758c923e99c23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,792,1556,4500,27907,27908</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22583281$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fabrikant, I. I.</creatorcontrib><creatorcontrib>Caprasecca, S.</creatorcontrib><creatorcontrib>Gallup, G. A.</creatorcontrib><creatorcontrib>Gorfinkiel, J. D.</creatorcontrib><title>Electron attachment to molecules in a cluster environment</title><title>The Journal of chemical physics</title><addtitle>J Chem Phys</addtitle><description>Low-energy dissociative electron attachment (DEA) to the CF
2
Cl
2
and CF
3
Cl molecules in a water cluster environment is investigated theoretically. Calculations are performed for the water trimer and water hexamer. It is shown that the DEA cross section is strongly enhanced when the attaching molecule is embedded in a water cluster, and that this cross section grows as the number of water molecules in the cluster increases. This growth is explained by a trapping effect that is due to multiple scattering by water molecules while the electron is trapped in the cluster environment. The trapping increases the resonance lifetime and the negative ion survival probability. This confirms qualitatively existing experiments on electron attachment to the CF
2
Cl
2
molecule placed on the surface of H
2
O ice. The DEA cross sections are shown to be very sensitive to the position of the attaching molecule within the cluster and the orientation of the electron beam relative to the cluster.</description><subject>Clusters</subject><subject>Cross sections</subject><subject>Electron attachment</subject><subject>Joining</subject><subject>Mathematical analysis</subject><subject>Survival</subject><subject>Trapping</subject><subject>Trimers</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqF0E1LAzEQBuAgiq3Vg39A9qiHrZNkNx8HD1LqBxS86HlJ0wmu7G7qJiv475vSVk_iKTB5eJl5CbmkMKUg-C2dFhKEgOKIjCkonUuh4ZiMARjNtQAxImchfAAAlaw4JSPGSsWZomOi5w3a2PsuMzEa-95iF7Pos9an-dBgyOr0ldlmCBH7DLuvOuGtOicnzjQBL_bvhLw9zF9nT_ni5fF5dr_IbQEy5ii5Q6lAGeFMWYITFrUTbCkLK9LWTmtmjOIrFFZY6ZziQpbKasZRa8v4hFzvcte9_xwwxKqtg8WmMR36IVSUM862V6v_KVCuqda8TPRmR23vQ-jRVeu-bk3_nVC1LbWi1b7UZK_2scOyxdWPPLSYwN0OBFtHE2vf_Z126Lv67ZtvADdrhSY</recordid><startdate>20120514</startdate><enddate>20120514</enddate><creator>Fabrikant, I. I.</creator><creator>Caprasecca, S.</creator><creator>Gallup, G. A.</creator><creator>Gorfinkiel, J. D.</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20120514</creationdate><title>Electron attachment to molecules in a cluster environment</title><author>Fabrikant, I. I. ; Caprasecca, S. ; Gallup, G. A. ; Gorfinkiel, J. D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-e73fe7808a6fa550f6ce9f62b74c6706f992aa83de6c6c7ff836758c923e99c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Clusters</topic><topic>Cross sections</topic><topic>Electron attachment</topic><topic>Joining</topic><topic>Mathematical analysis</topic><topic>Survival</topic><topic>Trapping</topic><topic>Trimers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fabrikant, I. I.</creatorcontrib><creatorcontrib>Caprasecca, S.</creatorcontrib><creatorcontrib>Gallup, G. A.</creatorcontrib><creatorcontrib>Gorfinkiel, J. D.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fabrikant, I. I.</au><au>Caprasecca, S.</au><au>Gallup, G. A.</au><au>Gorfinkiel, J. D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electron attachment to molecules in a cluster environment</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2012-05-14</date><risdate>2012</risdate><volume>136</volume><issue>18</issue><spage>184301</spage><epage>184301-8</epage><pages>184301-184301-8</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>Low-energy dissociative electron attachment (DEA) to the CF
2
Cl
2
and CF
3
Cl molecules in a water cluster environment is investigated theoretically. Calculations are performed for the water trimer and water hexamer. It is shown that the DEA cross section is strongly enhanced when the attaching molecule is embedded in a water cluster, and that this cross section grows as the number of water molecules in the cluster increases. This growth is explained by a trapping effect that is due to multiple scattering by water molecules while the electron is trapped in the cluster environment. The trapping increases the resonance lifetime and the negative ion survival probability. This confirms qualitatively existing experiments on electron attachment to the CF
2
Cl
2
molecule placed on the surface of H
2
O ice. The DEA cross sections are shown to be very sensitive to the position of the attaching molecule within the cluster and the orientation of the electron beam relative to the cluster.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>22583281</pmid><doi>10.1063/1.4706604</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-9606 |
| ispartof | The Journal of chemical physics, 2012-05, Vol.136 (18), p.184301-184301-8 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1323210898 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | Clusters Cross sections Electron attachment Joining Mathematical analysis Survival Trapping Trimers |
| title | Electron attachment to molecules in a cluster environment |
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