Tuning Philicity of Dichlorosilylene: Nucleophilic Behavior of the Dichlorosilylene–NHC Complex Cl 2 Si–IPr

Vladimir Ya. Lee (1) , Satoru Horiguchi (1) , Akira Sekiguchi (1) , Olga Gapurenko (2) , Tatyana Gribanova (2) , Vladimir Minkin (2) , Heinz Gornitzka (3)

1 Graduate School of Pure and Applied Sciences, University of Tsukuba
2 SFEDU - Southern Federal University [Rostov-on-Don]
3 LCC - Laboratoire de chimie de coordination

Novel unsaturated four-membered ring disilene, 3,3-dichloro-1,2,4,4-tetrakis[di-tert-butyl(methyl)silyl]-1Δ-1,2,3,4-trisilagermetene, was synthesized by the ring expansion reaction of the three-membered ring 1-disilagermirene with the silylene–NHC complex Cl2Si–IPr. The mechanism of the unexpected formation of this compound was verified by high-level density functional theory computations, which revealed nSi:(HOMO)–πSi═Si(LUMO)* as the dominant orbital interaction.

Domaines: Chimie de coordination

Vladimir Ya. Lee, Satoru Horiguchi, Akira Sekiguchi, Olga Gapurenko, Tatyana Gribanova, et al.. Tuning Philicity of Dichlorosilylene: Nucleophilic Behavior of the Dichlorosilylene–NHC Complex Cl 2 Si–IPr. ACS Omega, 2019, 4 (2), pp.2902-2906. ⟨10.1021/acsomega.8b03429⟩. ⟨hal-02333633⟩