Tetrasilabicyclo[1.1.0]but-1(3)-enes, compounds containing an Si=Si double bond with an inverted geometry, have recently emerged as a new class of stable π-electron systems of silicon. Herein, we report the synthesis of 2,4-diaminotetrasilabicyclo[ 1.1.0]but-1(3)-enes 1t and 1c that have amino groups at the bridge positions. XRD analysis and theoretical calculations revealed that inverted Si=Si double bonds in 1t and 1c lengthen up to 2.55 likely due to the interaction between the π(Si=Si) and σ*(SiN) orbitals.
|Number of pages||4|
|Publication status||Published - 2022 Jan|
- Amino group
- Inverted double bond
ASJC Scopus subject areas