To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α
1
, α
2
, α
3
, and α
4
each represent an arylene group having less than or equal to 13 carbon atoms; Ar
1
and Ar
2
each represent an aryl group having less than or equal to 13 carbon atoms; R
1
represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R
2
represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n are each independently 0 or 1.
为了提供具有高发光效率的发光元件,并提供低功耗、低电压驱动的发光装置和电子装置,提供了由通式(1)表示的
咔唑衍
生物。在该式中,α1、α2、α3和α4各代表具有小于或等于13个碳原子的
芳烃基;Ar1和Ar2各代表具有小于或等于13个碳原子的芳基;R1代表氢原子、具有1至6个碳原子的烷基、取代或未取代的苯基和取代或未取代的
联苯基中的任意一种;R2代表具有1至6个碳原子的烷基、取代或未取代的苯基和取代或未取代的
联苯基中的任意一种。此外,l、m和n各自独立地为0或1。