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Addition of chalcogens (O<jats:sub>2<\/jats:sub>, S<jats:sub>8<\/jats:sub>, Se<jats:sub><jats:italic>x<\/jats:italic><\/jats:sub> and Te<jats:sub><jats:italic>x<\/jats:italic><\/jats:sub>) led to the formation of dichalcogen\u2010bridged P<jats:sub>2<\/jats:sub>N<jats:sub>2<\/jats:sub> heterocycles, except from the reaction with molecular oxygen, which gave a P<jats:sub>2<\/jats:sub>N<jats:sub>2<\/jats:sub> ring featuring a dicoordinated P<jats:sup>III<\/jats:sup> and a four\u2010coordinated P<jats:sup>V<\/jats:sup> center. In formal [2\u03c0e+2\u03c0e] addition reactions, small unsaturated compounds such as ethylene, acetylene, acetone, acetonitrile, tolane, diphenylcarbodiimide, and bis(trimethylsilyl)sulfurdiimide are readily added to the P<jats:sub>2<\/jats:sub>N<jats:sub>2<\/jats:sub> heterocycle of the biradicaloid [P(\u03bc\u2010NTer)]<jats:sub>2<\/jats:sub>, yielding novel heteroatom cage compounds. The synthesis, reactivity, and bonding of the biradicaloid [P(\u03bc\u2010NTer)]<jats:sub>2<\/jats:sub> were studied in detail as well as the synthesis, properties, and structural features of all addition products.<\/jats:p>","DOI":"10.1002\/chem.201403964","type":"journal-article","created":{"date-parts":[[2014,9,29]],"date-time":"2014-09-29T20:07:08Z","timestamp":1412021228000},"page":"14659-14673","source":"Crossref","is-referenced-by-count":92,"title":["Activation of Small Molecules by Phosphorus Biradicaloids"],"prefix":"10.1002","volume":"20","author":[{"given":"Alexander","family":"Hinz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rene","family":"Kuzora","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uwe","family":"Rosenthal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Axel","family":"Schulz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Villinger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,9,29]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr400056a"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2006.09.007"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.19720840303"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0009-2614(87)85073-X"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar00003a005"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1021\/jz100155s"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/zaac.19875510809"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3757(20021104)114:21<4178::AID-ANGE4178>3.0.CO;2-2"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1039\/9781849730471"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201208360"},{"key":"e_1_2_6_10_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201208360"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201103742"},{"key":"e_1_2_6_11_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201103742"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00415a010"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.2298\/JSC100419080M"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr00028a002"},{"key":"e_1_2_6_15_2","volume-title":"Diradicals","author":"Borden W. 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