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Herein, we report that the transamination reaction of the DAMPY ligand system (DAMPY=2,6\u2010[ArNH\u2010CH<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub>(NC<jats:sub>5<\/jats:sub>H<jats:sub>3<\/jats:sub>) (Ar=C<jats:sub>6<\/jats:sub>H<jats:sub>3<\/jats:sub>\u20102,6\u2010<jats:italic>i<\/jats:italic>Pr<jats:sub>2<\/jats:sub>)) with Sn[N(SiMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub> produces the DIMPYSn complex (DIMPY=(2,6\u2010[ArN\uf8feCH]<jats:sub>2<\/jats:sub>(NC<jats:sub>5<\/jats:sub>H<jats:sub>3<\/jats:sub>)) with the Sn atom in a formal oxidation state of zero. This is the first example of a tin compound stabilized in a formal oxidation state of zero by only one donor molecule. Furthermore, three related low\u2010valent Sn<jats:sup>II<\/jats:sup> complexes, including a [DIMPYSn<jats:sup>II<\/jats:sup>Cl]<jats:sup>+<\/jats:sup>[SnCl<jats:sub>3<\/jats:sub>]<jats:sup>\u2212<\/jats:sup> ion pair, a bisstannylene DAMPY{Sn<jats:sup>II<\/jats:sup>[N(SiMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub>}<jats:sub>2<\/jats:sub>, and the enamine complex MeDIMPYSn<jats:sup>II<\/jats:sup>, were isolated. Experimental results and the conclusions drawn are also supported by theoretical studies at the density functional level of theory and <jats:sup>119<\/jats:sup>Sn M\u00f6ssbauer spectroscopy.<\/jats:p>","DOI":"10.1002\/chem.201301340","type":"journal-article","created":{"date-parts":[[2013,10,30]],"date-time":"2013-10-30T12:19:32Z","timestamp":1383135572000},"page":"15504-15517","source":"Crossref","is-referenced-by-count":100,"title":["The Role of 2,6\u2010Diaminopyridine Ligands in the Isolation of an Unprecedented, Low\u2010Valent Tin Complex"],"prefix":"10.1002","volume":"19","author":[{"given":"Johanna","family":"Flock","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amra","family":"Suljanovic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana","family":"Torvisco","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Schoefberger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Birgit","family":"Gerke","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rainer","family":"P\u00f6ttgen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roland C.","family":"Fischer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michaela","family":"Flock","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,10,8]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar2000875"},{"key":"e_1_2_6_2_2","first-page":"354","volume":"110","author":"Asay M.","year":"2010","journal-title":"Chem. 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