Isolation and Reactivity of a Square‐Planar Trisamido Silane
Abstract
Square-planar coordination at tetravalent silicon is highly disfavored, rendering structurally authenticated Si(+IV) complexes of this type exceedingly rare. Herein, we report the synthesis and isolation of a square-planar silicon(+IV) hydride supported by an unsymmetric, trianionic N,N,N-pincer ligand with a dearomatised backbone. Single-crystal X-ray diffraction confirms a strictly planar, four-coordinate silicon centre, with spectroscopic data and quantum-chemical calculations providing complementary support for this bonding motif. Reactivity studies demonstrate element-ligand cooperative substrate activation driven by ligand rearomatisation, thereby paralleling constant-oxidation-state transformations in late transition metal systems and challenging the prevailing reliance on low-valent p-block species for bond activation.
Fields of Study & Subjects
Synthesis and characterization of novel inorganic/organometallic compounds
Organoboron and organosilicon chemistry
Organometallic Complex Synthesis and Catalysis
Publication details
- Journal / source
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Volume
- 65
- Issue
- 21
- Pages
- e1788393–e1788393
- Publication date
- 9 April 2026
- Language
- EN