The present application provides a nitrogen-containing compounds represented by formula I-A, electronic elements and electronic devices. The application relates to the field of organic material. The nitrogen-containing compounds can improve the performance of electronic elements.

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To provide an organic electroluminescent device realizing high efficiency and low voltage characteristics. A light-emitting layer including compounds of (1) and (2) and a dopant is included. X represents N or CR.sup.3, wherein at least one X represents N. R.sup.1 represents (1b), R.sup.2 represents (1c), and R.sup.3 represents an alkyl group or the like. Y represents O, S, NR.sup.4, or CR.sup.5R.sup.6, R.sup.4 to R.sup.6 each represent an alkyl group or the like, and one of R.sup.7 to R.sup.14 binds to a ring in (1). * represents a binding position to a ring in (1), and rings C and D are each an aromatic ring fused to an adjacent ring. R.sup.15, R.sup.16 and R.sup.17 have the same meaning as R.sup.3 (a and b represent the number of substitutions). R.sup.19 has the same meaning as R.sup.4, and R.sup.20 to R.sup.27 each represent CR.sup.3, CR.sup.28 or N and at least one thereof represents CR.sup.28, and R.sup.28 represents formula (2b). Z represents O, S, NR.sup.37, or CR.sup.38R.sup.39, R.sup.37 to R.sup.39 each has the same meaning as R.sup.4, and one of R.sup.29 to R.sup.36 binds to a ring in (2) and the others represent CR.sup.3 or N.

To provide an organic electroluminescent device realizing high efficiency and low voltage characteristics. A light-emitting layer including compounds of (1) and (2) and a dopant is included. X represents N or CR.sup.3, wherein at least one X represents N. R.sup.1 represents (1b), R.sup.2 represents (1c), and R.sup.3 represents an alkyl group or the like. Y represents O, S, NR.sup.4, or CR.sup.5R.sup.6, R.sup.4 to R.sup.6 each represent an alkyl group or the like, and one of R.sup.7 to R.sup.14 binds to a ring in (1). * represents a binding position to a ring in (1), and rings C and D are each an aromatic ring fused to an adjacent ring. R.sup.15, R.sup.16 and R.sup.17 have the same meaning as R.sup.3 (a and b represent the number of substitutions). R.sup.19 has the same meaning as R.sup.4, and R.sup.20 to R.sup.27 each represent CR.sup.3, CR.sup.28 or N and at least one thereof represents CR.sup.28, and R.sup.28 represents formula (2b). Z represents O, S, NR.sup.37, or CR.sup.38R.sup.39, R.sup.37 to R.sup.39 each has the same meaning as R.sup.4, and one of R.sup.29 to R.sup.36 binds to a ring in (2) and the others represent CR.sup.3 or N.

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

The present invention relates to a process to produce compounds of the formula (1) which are suitable for use in electronic devices, as well as to intermediate compounds of formula (Int-1) and compounds of formula (1-1) and (1-2) obtained via the process. These compounds are particularly suitable for use organic electroluminescent devices. The present invention also relate to electronic devices, which comprise these compounds.

The present invention relates to a process to produce compounds of the formula (1) which are suitable for use in electronic devices, as well as to intermediate compounds of formula (Int-1) and compounds of formula (1-1) and (1-2) obtained via the process. These compounds are particularly suitable for use organic electroluminescent devices. The present invention also relate to electronic devices, which comprise these compounds.

The present disclosure relates to an organic compound having a binaphthyl core and a group connected to the biphenyl core and having excellent charge mobility property, and a light emitting diode and a light emitting device having the organic compound. The organic compound can be applied into the light emitting diode by using solution process and has very deep HOMO energy level. When the organic compound is applied into a chare transfer layer, a HOMO energy level bandgap between the charge transfer layer and an emitting material layer is reduced so that holes and electrons can be injected into the emitting material layer in a balanced manner.

The present disclosure relates to an organic compound having a binaphthyl core and a group connected to the biphenyl core and having excellent charge mobility property, and a light emitting diode and a light emitting device having the organic compound. The organic compound can be applied into the light emitting diode by using solution process and has very deep HOMO energy level. When the organic compound is applied into a chare transfer layer, a HOMO energy level bandgap between the charge transfer layer and an emitting material layer is reduced so that holes and electrons can be injected into the emitting material layer in a balanced manner.

An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material. ##STR00001##