{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T16:37:19Z","timestamp":1786639039049,"version":"build-2736575974"},"reference-count":44,"publisher":"Wiley","issue":"30","license":[{"start":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T00:00:00Z","timestamp":1769731200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T00:00:00Z","timestamp":1769731200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["INST 40\/575\u20101"],"award-info":[{"award-number":["INST 40\/575\u20101"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2026,8,13]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The recombination reaction of nitric oxide (NO) with radicals\n                    <jats:italic>via<\/jats:italic>\n                    its oxygen atom, rather than the more common nitrogen site, offers an intriguing pathway to the formation of oxynitrenes. The photochemical isomerization of nitroso compounds into their corresponding oxynitrenes may involve such a step. However, because this reaction typically proceeds under continuous irradiation, the formation mechanism has so far remained obscure. In this work, we investigate the recombination of the phenyl radical with NO strictly under thermal conditions, using infrared (IR) and electron paramagnetic resonance (EPR) spectroscopy. A proximal radical pair is generated in a solid argon matrix by photolysis of nitrosobenzene at 254\u00a0nm. Upon annealing the matrix to 30 K, the radicals undergo a thermal reaction that yields both nitrosobenzene and phenoxynitrene, notably in comparable amounts. NEVPT2 computations show that phenoxynitrene forms on the 1\u2010\n                    <jats:sup>1<\/jats:sup>\n                    A\u2032 singlet surface, intersecting the 1\u2010\n                    <jats:sup>3<\/jats:sup>\n                    A\u2032\u2032 triplet ground state 1.0\u00a0kcal\u00a0mol\n                    <jats:sup>\u22121<\/jats:sup>\n                    below the separated reactants. At this crossing point, a substantial spin\u2013orbit coupling (55 cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    ) enables two\u2010state reactivity, thereby illuminating the mechanism behind this elusive transformation.\n                  <\/jats:p>","DOI":"10.1002\/chem.202503332","type":"journal-article","created":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T11:54:35Z","timestamp":1769774075000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ambident Reactivity in the Phenyl + NO Radical Recombination"],"prefix":"10.1002","volume":"32","author":[{"given":"Virinder","family":"Bhagat","sequence":"first","affiliation":[{"name":"Institut F\u00fcr Organische Chemie Eberhard Karls Universit\u00e4t T\u00fcbingen  T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9859-4043","authenticated-orcid":false,"given":"Adri\u00e1n","family":"Portela\u2010Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Lehrstuhl f\u00fcr Organische Chemie II, Ruhr\u2010Universit\u00e4t Bochum  Bochum Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1029-9272","authenticated-orcid":false,"given":"Andr\u00e9 K.","family":"Eckhardt","sequence":"additional","affiliation":[{"name":"Lehrstuhl f\u00fcr Organische Chemie II, Ruhr\u2010Universit\u00e4t Bochum  Bochum Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1433-0292","authenticated-orcid":false,"given":"J. 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