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This 17\u2010electron species reacts in time of mixing with N<jats:sub>2<\/jats:sub>O to form L<jats:sub>2<\/jats:sub>Co<jats:sub>2<\/jats:sub>(\u03bc\u2010OPEt<jats:sub>3<\/jats:sub>) (<jats:bold>2<\/jats:bold>)+3 OPEt<jats:sub>3<\/jats:sub>, the former the first example of phosphine oxide bridging two transition metals. The same products are formed from O<jats:sub>2<\/jats:sub>, and divalent cobalt persists even in the presence of excess oxidant. Species (<jats:bold>2<\/jats:bold>) catalyzes oxygen atom transfer (OAT) for generation of O=PEt<jats:sub>3<\/jats:sub> from PEt<jats:sub>3<\/jats:sub> from either N<jats:sub>2<\/jats:sub>O or O<jats:sub>2<\/jats:sub>. Bridging and terminal cobalt oxo intermediates are suggested, and the electron donor power, and potential redox activity of the dianionic pincer ligand is emphasized.<\/jats:p>","DOI":"10.1002\/chem.201800086","type":"journal-article","created":{"date-parts":[[2018,2,13]],"date-time":"2018-02-13T12:25:29Z","timestamp":1518524729000},"page":"5962-5966","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["A Multifunctional Pincer Ligand for Cobalt\u2010Promoted Oxidation by N<sub>2<\/sub>O"],"prefix":"10.1002","volume":"24","author":[{"given":"Brian J.","family":"Cook","sequence":"first","affiliation":[{"name":"Department of Chemistry Indiana University  800 E Kirkwood Ave Bloomington IN 47405 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun\u2010Hsing","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indiana University  800 E Kirkwood Ave Bloomington IN 47405 USA"},{"name":"Molecular Structure Center Indiana University  800 E Kirkwood Ave Bloomington IN 47405 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3599-1038","authenticated-orcid":false,"given":"Kenneth G.","family":"Caulton","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indiana University  800 E Kirkwood Ave Bloomington IN 47405 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,3,23]]},"reference":[{"key":"e_1_2_6_1_1","unstructured":"\u00a0"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar3000019"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-396462-5.00001-5"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2006.02.001"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2004.06.018"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00775-004-0578-4"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1039\/C4CS00111G"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar980009u"},{"key":"e_1_2_6_9_1","unstructured":"\u00a0"},{"key":"e_1_2_6_10_2","first-page":"25","volume":"18","author":"Caulton K. 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