Fluorene compound, light-emitting element, light-emitting device, electronic device and lighting device

摘要

A substance having a hole-transport property and a wide band gap is provided. A fluorene compound represented by a general formula (G1) is provided. In the general formula (G1), ± 1 and ± 2 separately represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; Ar 1 represents a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, a substituted or unsubstituted 4-dibenzothiophenyl group, or a substituted or unsubstituted 4-dibenzofuranyl group; n and k separately represent 0 or 1; Q 1 represents sulfur or oxygen; and R 1 to R 15 separately represent hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms.