The present invention relates to substituted boron or aluminum spiro compounds
and their use in the electronic industry. The compounds of the invention are used
as electron transport material, hole blocking material and/or as host material
in organic electroluminescence and/or phosphorescence devices, as electron transport
material in photocopiers, as electron acceptor or electron transport material in
solar cells, as charge transport material in organic ICs (circuits) and in organic
solid-state lasers or organic photodetectors.