Excited-state dynamics of o-nitrophenol studied with UV pump–VUV probe time-resolved photoelectron and photoion spectroscopy
Time-resolved photoionization measurements were performed on o-nitrophenol pumped with UV laser pulses at a central wavelength of 255 nm (4.9 eV) and probed with vacuum ultraviolet (VUV) pulses at 153 nm (8.1 eV). The photoelectron spectrum and time of flight mass spectrum for ions were recorded at...
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| Veröffentlicht in: | The Journal of chemical physics 2023-04, Vol.158 (14), p.144303-144303 |
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| container_issue | 14 |
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| container_title | The Journal of chemical physics |
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| creator | McClung, Samuel Abeygunewardane, Dakshitha Matsika, Spiridoula Weinacht, Thomas |
| description | Time-resolved photoionization measurements were performed on o-nitrophenol pumped with UV laser pulses at a central wavelength of 255 nm (4.9 eV) and probed with vacuum ultraviolet (VUV) pulses at 153 nm (8.1 eV). The photoelectron spectrum and time of flight mass spectrum for ions were recorded at each pump–probe delay. The measurements are interpreted with the aid of electronic structure calculations for both the neutral and ionic states. Evidence is found for the formation of a bicyclic intermediate followed by NO dissociation through a process of internal conversion and intersystem crossing. The combination of photoelectron and photoion spectroscopy, together with computational results, provides strong evidence of intersystem crossing that is difficult to establish with only a single technique. |
| doi_str_mv | 10.1063/5.0146399 |
| format | Article |
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The photoelectron spectrum and time of flight mass spectrum for ions were recorded at each pump–probe delay. The measurements are interpreted with the aid of electronic structure calculations for both the neutral and ionic states. Evidence is found for the formation of a bicyclic intermediate followed by NO dissociation through a process of internal conversion and intersystem crossing. 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The combination of photoelectron and photoion spectroscopy, together with computational results, provides strong evidence of intersystem crossing that is difficult to establish with only a single technique.</description><subject>Electronic structure</subject><subject>Internal conversion</subject><subject>Nitrophenol</subject><subject>Photoelectrons</subject><subject>Photoionization</subject><subject>Physics</subject><subject>Time measurement</subject><subject>Ultraviolet lasers</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp90c1qFTEUB_AgFnutLnwBCbiphan5nsxSSrVCwY3tdsjHGW7KzGScZFrvpvgOvqFPYm7vtYKgqySHH4eT80foFSWnlCj-Tp4SKhRvmidoRYluqlo15ClaEcJo1SiiDtHzlG4IIbRm4hk65DVRVGi5Qvfn31zI4KuUTQbsN6MZgks4djhWY8hznNYwxh6nvPgAHt-FvMZX13hahunn9x_X2-scLeAcBqhmSLG_LWxaxxyhB1c6jNiM-0oojzQ9VJOL0-YFOuhMn-Dl_jxCVx_Ov5xdVJefP346e39ZOUF1rrSz1FMpGmUNCOGgZrVWxErmawWMSiuk4Aw0o4Rby7S3stGeWek6YYDyI3S861tm_bpAyu0QkoO-NyPEJbVME9rUquyr0Dd_0Zu4zGOZbqsI55o-qLc75cpP0gxdO81hMPOmpaTdhtLKdh9Ksa_3HRc7gH-Uv1Mo4GQHUsnC5LKk_3b7J76N8x_YTr7jvwDJpqUb</recordid><startdate>20230414</startdate><enddate>20230414</enddate><creator>McClung, Samuel</creator><creator>Abeygunewardane, Dakshitha</creator><creator>Matsika, Spiridoula</creator><creator>Weinacht, Thomas</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-8994-8209</orcidid><orcidid>https://orcid.org/0000-0002-4266-0045</orcidid><orcidid>https://orcid.org/0000-0001-9343-7276</orcidid><orcidid>https://orcid.org/0000-0003-2773-3979</orcidid></search><sort><creationdate>20230414</creationdate><title>Excited-state dynamics of o-nitrophenol studied with UV pump–VUV probe time-resolved photoelectron and photoion spectroscopy</title><author>McClung, Samuel ; Abeygunewardane, Dakshitha ; Matsika, Spiridoula ; Weinacht, Thomas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-8cb1d15496bae44ce727860b52d76e215b45432e82103bb28db598d2b5cf4ae13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Electronic structure</topic><topic>Internal conversion</topic><topic>Nitrophenol</topic><topic>Photoelectrons</topic><topic>Photoionization</topic><topic>Physics</topic><topic>Time measurement</topic><topic>Ultraviolet lasers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McClung, Samuel</creatorcontrib><creatorcontrib>Abeygunewardane, Dakshitha</creatorcontrib><creatorcontrib>Matsika, Spiridoula</creatorcontrib><creatorcontrib>Weinacht, Thomas</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McClung, Samuel</au><au>Abeygunewardane, Dakshitha</au><au>Matsika, Spiridoula</au><au>Weinacht, Thomas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Excited-state dynamics of o-nitrophenol studied with UV pump–VUV probe time-resolved photoelectron and photoion spectroscopy</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2023-04-14</date><risdate>2023</risdate><volume>158</volume><issue>14</issue><spage>144303</spage><epage>144303</epage><pages>144303-144303</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>Time-resolved photoionization measurements were performed on o-nitrophenol pumped with UV laser pulses at a central wavelength of 255 nm (4.9 eV) and probed with vacuum ultraviolet (VUV) pulses at 153 nm (8.1 eV). The photoelectron spectrum and time of flight mass spectrum for ions were recorded at each pump–probe delay. The measurements are interpreted with the aid of electronic structure calculations for both the neutral and ionic states. Evidence is found for the formation of a bicyclic intermediate followed by NO dissociation through a process of internal conversion and intersystem crossing. 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| ispartof | The Journal of chemical physics, 2023-04, Vol.158 (14), p.144303-144303 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0146399 |
| source | AIP Journals; Alma/SFX Local Collection |
| subjects | Electronic structure Internal conversion Nitrophenol Photoelectrons Photoionization Physics Time measurement Ultraviolet lasers |
| title | Excited-state dynamics of o-nitrophenol studied with UV pump–VUV probe time-resolved photoelectron and photoion spectroscopy |
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