{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T19:16:13Z","timestamp":1791573373556,"version":"4.3.4"},"reference-count":30,"publisher":"AIP Publishing","issue":"1","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21833003"],"award-info":[{"award-number":["21833003"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21773134"],"award-info":[{"award-number":["21773134"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22103049"],"award-info":[{"award-number":["22103049"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,1,7]]},"abstract":"<jats:p>The precise determination of the bond dissociation energy of N2 is crucial for thermochemistry database and theoretical calculations. However, there has been ongoing debate regarding its exact value. In this study, we used the velocity map imaging method combined with an extreme ultraviolet laser to measure the threshold fragment yield (TFY) spectra of N2 in the N(2D) + N(2D) photodissociation channels. By integrating the signals within a small circular area on the fragment velocity map images, we were able to obtain TFY spectra at nine different dissociation thresholds. These spectra are rotational state-resolved for the N2(J\u2033) molecules and spin\u2013orbit state-resolved for the dissociation channels involving N(2D) fragments. By employing the Wigner threshold law to simulate the TFY spectra and conducting statistical analysis on the comprehensive dataset, we determined the N2 bond dissociation energy to be 78\u2009691.09 \u00b1 0.15\u00a0cm\u22121. This work now places N2 among the few diatomic molecules with bond dissociation energies measured at sub-wavenumber precision.<\/jats:p>","DOI":"10.1063\/5.0187003","type":"journal-article","created":{"date-parts":[[2024,1,4]],"date-time":"2024-01-04T11:20:05Z","timestamp":1704367205000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":27,"title":["Bond dissociation energy of N2 measured by state-to-state resolved threshold fragment yield spectra"],"prefix":"10.1063","volume":"160","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1502-3777","authenticated-orcid":false,"given":"Peng","family":"Wang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University , Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiyan","family":"Gong","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University , Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-0999-3974","authenticated-orcid":false,"given":"Yixuan","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University , Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8499-7623","authenticated-orcid":false,"given":"Yuxiang","family":"Mo","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University , Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2024,1,4]]},"reference":[{"key":"2024010411181711500_c1","doi-asserted-by":"publisher","first-page":"1415","DOI":"10.1007\/s00214-013-1415-z","article-title":"Active Thermochemical Tables: Dissociation energies of several homonuclear first-row diatomics and related thermochemical values","volume":"133","year":"2014","journal-title":"Theor. 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