Synthesis of Dibenzo[<i>b</i>,<i>f</i>]silepins with a Benzoquinolyl Ligand

A benzo[<i>h</i>]quinolyl ligand provided pentacoordinate character for silicon in dibenzo[<i>b,f</i>]silepins. Substituents on the silicon center determined both conformations of the dibenzosilepin and luminescence properties in relation to charge transfer.