An Anionic Amido-Substituted Seven-Vertex Siliconoid Cluster.

ABSTRACT: The silanide [Si₄ {N(SiMe₃ )Dipp}₃ ]^- (1) transforms into the anionic siliconoid cluster [Si₇ {N(SiMe₃ )Dipp}₃ ]^- (2) with four unsubstituted silicon atoms as a contact ion pair with [K([18]crown-6)] in C₆ D₆ at room temperature within five weeks. Anion 2 was investigated by natural population analysis and visualization of intrinsic atomic orbitals. Magnetically induced current-density calculations of 2 revealed two distinct strong diatropic vortices that sum up in one direction and create a strongly shielded apical silicon atom in 2.

SUBMITTER: Keuter J 

PROVIDER: S-EPMC9543723 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature