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Its reactivity was compared to its silicon homologue (C<jats:sub>2<\/jats:sub>F<jats:sub>5<\/jats:sub>)<jats:sub>3<\/jats:sub>SiCH<jats:sub>2<\/jats:sub>P(<jats:italic>t<\/jats:italic>Bu)<jats:sub>2<\/jats:sub>. Both FLPs cleave NO but give cyclic (Si) and open\u2010chain oxides (Ge). In reactions with HCl both FLPs gave the same adduct type in the solid state, while the proton seems more mobile in solution in the germanium case. Reactions with PhCNO and Me<jats:sub>3<\/jats:sub>SiCHN<jats:sub>2<\/jats:sub> result in ring\u2010type adducts. The structures of (C<jats:sub>2<\/jats:sub>F<jats:sub>5<\/jats:sub>)<jats:sub>3<\/jats:sub>GeCH<jats:sub>2<\/jats:sub>P(<jats:italic>t<\/jats:italic>Bu)<jats:sub>2<\/jats:sub> and of five adducts with substrates were elucidated by X\u2010ray diffraction. The study clearly showed the germanium compound to have a more moderate Lewis acidity compared to the silicon analogue.<\/jats:p>","DOI":"10.1002\/chem.201901068","type":"journal-article","created":{"date-parts":[[2019,3,7]],"date-time":"2019-03-07T06:50:58Z","timestamp":1551941458000},"page":"5899-5903","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":52,"title":["A Neutral Germanium\/Phosphorus Frustrated Lewis Pair and Its Contrasting Reactivity Compared to Its Silicon Analogue"],"prefix":"10.1002","volume":"25","author":[{"given":"Timo A.","family":"Kinder","sequence":"first","affiliation":[{"name":"Lehrstuhl f\u00fcr Anorganische Chemie und Strukturchemie und Centrum f\u00fcr, Molekulare Materialien CM<sub>2<\/sub> Universit\u00e4t Bielefeld  Universit\u00e4tsstra\u00dfe 25 33615 Bielefeld 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