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The in\u2010situ KC<jats:sub>8<\/jats:sub> reduction of GeCl<jats:sub>2<\/jats:sub>\u00b7dioxane in the presence of <jats:sup>Me<\/jats:sup>BICAAC led to the isolation of a zero\u2010valent di\u2010coordinated germylone [(<jats:sup>Me<\/jats:sup>BICAAC)<jats:sub>2<\/jats:sub>Ge] (<jats:bold>5<\/jats:bold>), whereas the reduction of adduct <jats:bold>2<\/jats:bold> afforded a trans\u2010bent digermanium complex, [<jats:sup>iPr<\/jats:sup>BICAAC\u2192Ge\u2550Ge\u2190<jats:sup>iPr<\/jats:sup>BICAAC] (<jats:bold>6<\/jats:bold>), having a Ge\u2550Ge (2.3652(5) \u00c5) double bond. Additionally, complexes <jats:bold>3<\/jats:bold> and <jats:bold>4<\/jats:bold> were reacted with diironnonacarbonyl Fe<jats:sub>2<\/jats:sub>(CO)<jats:sub>9<\/jats:sub> to produce the corresponding Sn\u2192Fe adducts <jats:bold>7<\/jats:bold> and <jats:bold>8<\/jats:bold>, respectively. Further, attempts were made to convert the <jats:sup>Me<\/jats:sup>BICAAC\u2010Sn adducts <jats:bold>3<\/jats:bold> and <jats:bold>4<\/jats:bold> to the corresponding tin\u2010hydride complex, by treatment with LiBH<jats:sub>4<\/jats:sub>, however, in both the attempts, uncontrolled hydrogenation occurred to give the dihydrogented <jats:sup>Me<\/jats:sup>BICAAC complex, <jats:sup>Me<\/jats:sup>BICAAC(H<jats:sub>2<\/jats:sub>) (<jats:bold>9<\/jats:bold>). The solid\u2010state structures of compounds <jats:bold>1<\/jats:bold>\u2013<jats:bold>8<\/jats:bold> have also been elucidated using single\u2010crystal X\u2010ray diffraction technique. Further, computational investigations were performed to explain the bonding situation in <jats:bold>3<\/jats:bold>\u2013<jats:bold>8<\/jats:bold> that establishes the ylidone character of <jats:bold>5<\/jats:bold>, and supports the formation of <jats:bold>7<\/jats:bold>\u2013<jats:bold>8<\/jats:bold> via donation of the lone pair at Sn to the Fe center.<\/jats:p>","DOI":"10.1002\/chem.202501066","type":"journal-article","created":{"date-parts":[[2025,6,10]],"date-time":"2025-06-10T03:33:48Z","timestamp":1749526428000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Low\u2010Valent Group 14 Species Supported by BICAAC: Isolation of a Germylone and a Digermanium Compound"],"prefix":"10.1002","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1120-0847","authenticated-orcid":false,"given":"Manu","family":"Adhikari","sequence":"first","affiliation":[{"name":"Department of Chemical Sciences Indian 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