Reversible Formation of a Blue Arsasilene and Isolation of Air-Stable Emissive Disilenes

摘要

Allkene homologues with formal double bonds involving the heavier Group 14 elements constitute a very active area of research in contemporary main group chemistry. The major reasons for this ever-increasing interest are the high conformational flexibility and the inherently small HOMO-LUMO gap associated with the double bonds of heavier elements. Application of the principles of the electronic and steric stabilization of reactive main group metal centers has enabled a large number of heavier alkenes to be isolated that are thermally stable under inert conditions, but they usually retain a high reactivity.