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The new phosphine exhibits exceptional electron donor properties and readily forms transition metal complexes with gold(I), palladium(II) and rhodium(I) precursors. The formation of zwitterionic Lewis base adducts with carbon dioxide and sulfur dioxide was explored. In addition, the complete series of phosphine chalcogenides was prepared from the reaction of P(tmg)<jats:sub>3<\/jats:sub> with N<jats:sub>2<\/jats:sub>O and the elemental chalcogens.<\/jats:p>","DOI":"10.1002\/chem.202104021","type":"journal-article","created":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T16:23:20Z","timestamp":1637252600000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Tris(tetramethylguanidinyl)phosphine: The Simplest Non\u2010ionic Phosphorus Superbase and Strongly Donating Phosphine Ligand"],"prefix":"10.1002","volume":"28","author":[{"given":"Florenz","family":"Bu\u00df","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Anorganische und Analytische Chemie Westf\u00e4lische Wilhelms-Universit\u00e4t M\u00fcnster  Corrensstra\u00dfe 28\u201330 48149 M\u00fcnster Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maike B.","family":"R\u00f6thel","sequence":"additional","affiliation":[{"name":"Institute of General, Inorganic and Theoretical Chemistry University of Innsbruck, Center for Chemistry and Biomedicine  Innrain 80\u201382 A-6020 Innsbruck Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janina A.","family":"Werra","sequence":"additional","affiliation":[{"name":"Institute of General, Inorganic and Theoretical Chemistry University of Innsbruck, Center for Chemistry and Biomedicine  Innrain 80\u201382 A-6020 Innsbruck Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philipp","family":"Rotering","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Anorganische und Analytische Chemie Westf\u00e4lische Wilhelms-Universit\u00e4t M\u00fcnster  Corrensstra\u00dfe 28\u201330 48149 M\u00fcnster Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lukas F. 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