Electronic device comprising a compound having Formula 1 AB x, wherein A is a structural moiety that consists of at least two atoms and comprises a conjugated system of delocalized electrons, each B is independently selected from an imine functional group (Ia) wherein R 1, R 2, R 3, R 4 are independently selected from C 1 -C 30 alkyl, C 2 -C 30 alkenyl, C 2 -C 30 alkinyl, C 3 -C 30 cycloalkyl, C 6 -C 30 aryl, C 2 -C 30 heteroaryl, C 7 -C 30 arylalkyl, C 3 -C 30 heteroarylalkyl, the wave line represents a covalent bond to the imine nitrogen atom, G is in each group (Ia) independently selected as a quarternary carbon atom, x is an integer equal one or higher, preferably equal two or higher, and the lone electron pair of the imine nitrogen atom and/or the pi-electrons of the imine double bond of at least one group B is conjugated with the conjugated system of delocalized electrons comprised in the structural moiety A, with the proviso that two or more of the substituents R 1, R 2, R 3, R 4 may be connected to form a ring that may contain also unsaturation and, if any of the substituents R 1, R 2, R 3, R 4 comprises two or more carbon atoms, up to one third of the overall count of the carbon atoms in the substituent or in any ring formed by two connected substituents can be replaced with heteroatoms independently selected from O, S, N and B. A is a structural moiety that consists of at least two atoms and comprises a conjugated system of delocalized electrons, each B is independently selected from an imine functional group (Ia) wherein R 1, R 2, R 3, R 4 are independently selected from C 1 -C 30 alkyl, C 2 -C 30 alkenyl, C 2 -C 30 alkinyl, C 3 -C 30 cycloalkyl, C 6 -C 30 aryl, C 2 -C 30 heteroaryl, C 7 -C 30 arylalkyl, C 3 -C 30 heteroarylalkyl, the wave line represents a covalent bond to the imine nitrogen atom, G is in each group (Ia) independently selected as a quarternary carbon atom, x is an integer equal one or higher, preferably equal two or higher, and the lone electron pair of the imine nitrogen atom and/or the pi-electrons of the imine double bond of at least one group B is conjugated with the conjugated system of delocalized electrons comprised in the structural moiety A, with the proviso that two or more of the substituents R 1, R 2, R 3, R 4 may be connected to form a ring that may contain also unsaturation and, if any of the substituents R 1, R 2, R 3, R 4 comprises two or more carbon atoms, up to one third of the overall count of the carbon atoms in the substituent or in any ring formed by two connected substituents can be replaced with heteroatoms independently selected from O, S, N and B. wherein R 1, R 2, R 3, R 4 are independently selected from C 1 -C 30 alkyl, C 2 -C 30 alkenyl, C 2 -C 30 alkinyl, C 3 -C 30 cycloalkyl, C 6 -C 30 aryl, C 2 -C 30 heteroaryl, C 7 -C 30 arylalkyl, C 3 -C 30 heteroarylalkyl, the wave line represents a covalent bond to the imine nitrogen atom, G is in each group (Ia) independently selected as a quarternary carbon atom, x is an integer equal one or higher, preferably equal two or higher, and the lone electron pair of the imine nitrogen atom and/or the pi-electrons of the imine double bond of at least one group B is conjugated with the conjugated system of delocalized electrons comprised in the structural moiety A, with the proviso that two or more of the substituents R 1, R 2, R 3, R 4 may be connected to form a ring that may contain also unsaturation and, if any of the substituents R 1, R 2, R 3, R 4 comprises two or more carbon atoms, up to one third of the overall count of the carbon atoms in the substituent or in any ring formed by two connected substituents can be replaced with heteroatoms independently selected from O, S, N and B.