biostudies-literatureUnknown60(5)Weyer NThe N-heterocyclic silylene [{Fe(η<sup>5</sup> -C<sub>5</sub> H<sub>4</sub> -NDipp)<sub>2</sub> }Si] (1DippSi, Dipp=2,6-diisopropylphenyl) shows an excellent combination of pronounced thermal stability and high reactivity towards small molecules. It reacts readily with CO<sub>2</sub> and N<sub>2</sub> O, respectively affording (1DippSiO<sub>2</sub> )<sub>2</sub> C and (1DippSiO)<sub>2</sub> as follow-up products of the silanone 1DippSiO. Its reactions with H<sub>2</sub> O, NH<sub>3</sub> , and FcPH<sub>2</sub> (Fc=ferrocenyl) furnish the respective oxidative addition products 1DippSi(H)X (X=OH, NH<sub>2</sub> , PHFc). Its reaction with H<sub>3</sub> BNH<sub>3</sub> unexpectedly results in B-H, instead of N-H, bond activation, affording 1DippSi(H)(BH<sub>2</sub> NH<sub>3</sub> ). DFT resultAngewandte Chemie (International ed. in English)2624-2628https://www.ebi.ac.uk/biostudies/studies/S-EPMC7898919biostudies-literatureA Stable N-Heterocyclic Silylene with a 1,1'-Ferrocenediyl Backbone.PMC7898919Heinz MSiemeling UWeyer NBruhn CSchweizer JIHolthausen MCfalseA Stable N-Heterocyclic Silylene with a 1,1'-Ferrocenediyl Backbone.The N-heterocyclic silylene [{Fe(η<sup>5</sup> -C<sub>5</sub> H<sub>4</sub> -NDipp)<sub>2</sub> }Si] (1DippSi, Dipp=2,6-diisopropylphenyl) shows an excellent combination of pronounced thermal stability and high reactivity towards small molecules. It reacts readily with CO<sub>2</sub> and N<sub>2</sub> O, respectively affording (1DippSiO<sub>2</sub> )<sub>2</sub> C and (1DippSiO)<sub>2</sub> as follow-up products of the silanone 1DippSiO. Its reactions with H<sub>2</sub> O, NH<sub>3</sub> , and FcPH<sub>2</sub> (Fc=ferrocenyl) furnish the respective oxidative addition products 1DippSi(H)X (X=OH, NH<sub>2</sub> , PHFc). Its reaction with H<sub>3</sub> BNH<sub>3</sub> unexpectedly results in B-H, instead of N-H, bond activation, affording 1DippSi(H)(BH<sub>2</sub> NH<sub>3</sub> ). DFT result2021-01-01T00:00:00Z2021 Feb2026-05-07T18:38:46.728Z2021-03-06T08:18:22ZS-EPMC78989193305838910.1002/anie.202011691