Light-emitting devices

Abstract

This invention provides novel organic compounds, specifically quinoxaline derivatives. [Solution] A quinoxaline derivative represented by general formula (G1) having a structure in which the 9th position of an anthracene skeleton is bonded to a quinoxaline skeleton, the 10th position of the anthracene skeleton is bonded to a heteroaromatic ring, and the 3rd position of the heteroaromatic ring is nitrogen. JPEG2026102547000060.jpg90167

Claims

1. It has an anode, a cathode, and a light-emitting layer located between the anode and the cathode, The light-emitting layer has an organic compound having an anthracene skeleton, A light-emitting device having an organic compound represented by general formula (G1) between the light-emitting layer and the cathode. 【Chemistry 1】 (In the formula, a and b each independently represent substituted or unsubstituted arylene groups having 6 to 13 carbon atoms forming a ring. Also, m and n each independently represent 0, 1, or 2. However, the two arylene groups a when m=2, or the two arylene groups b when n=2, may be the same or different. Also, R １ ~R １３ Each of these independently represents hydrogen, a C1 to C6 alkyl group, a substituted or unsubstituted cyclic alkyl group with 3 to C7 forming a ring, or a substituted or unsubstituted aryl group with 6 to C13 forming a ring. Also, A is represented by the general formula (g1). Also, X １ ~X ４ These are N or CR, respectively, independently １４ This represents R. １４ (This represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cyclic alkyl group having 3 to 7 carbon atoms forming a ring, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring.)

2. It has an anode, a cathode, and a light-emitting layer located between the anode and the cathode, The light-emitting layer has an organic compound having an anthracene skeleton, A light-emitting device having an organic compound represented by general formula (G2) between the light-emitting layer and the cathode. 【Chemistry 2】 (In the formula, a represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms forming a ring. Also, m is 0, 1, or 2. However, when m = 2, the two arylene groups a may be the same or different from each other. Also, R １ ~R １３ each independently represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cyclic alkyl group having 3 to 7 carbon atoms forming a ring, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring. Also, A is represented by the general formula (g1). Also, X １ to X ４ each independently represents N or CR １４ . Here, R １４ represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cyclic alkyl group having 3 to 7 carbon atoms forming a ring, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring.)

3. It has an anode, a cathode, and a light-emitting layer located between the anode and the cathode, The light-emitting layer has an organic compound having an anthracene skeleton, A light-emitting device having an organic compound represented by general formula (G3) between the light-emitting layer and the cathode. 【Transformation 3】 (In the formula, a and b each independently represent substituted or unsubstituted arylene groups having 6 to 13 carbon atoms forming a ring. Also, n is 0, 1, or 2. However, when n=2, the two arylene groups b may be the same or different. Also, R １ ~R １３ Each of these independently represents hydrogen, a C1 to C6 alkyl group, a substituted or unsubstituted cyclic alkyl group with 3 to C7 forming a ring, or a substituted or unsubstituted aryl group with 6 to C13 forming a ring. Also, A is represented by the general formula (g1). Also, X １ ~X ４ These are N or CR, respectively, independently １４ This represents R. １４ (This represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cyclic alkyl group having 3 to 7 carbon atoms forming a ring, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring.)

4. In claim 1 or claim 3, The light-emitting device wherein b is a substituted or unsubstituted phenylene group.

5. In any one of claims 1 to 4, The light-emitting device wherein (a) is a substituted or unsubstituted phenylene group.

6. In any one of claims 1 to 5, The aforementioned general formula (g1) is a light-emitting device represented by any one of the general formulas (g1-1) to (g1-3). 【Chemistry 4】 (In the formula, R ２１ ~R ２４ , R ３１ ~R ３３ , R ４１ ~R ４３ (This represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cyclic alkyl group having 3 to 7 carbon atoms forming a ring, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring.)

7. In any one of claims 1 to 5, The aforementioned general formula (g1) is a light-emitting device represented by any one of general formulas (g1-4) to (g1-6). 【Transformation 5】

8. It has an anode, a cathode, and a light-emitting layer located between the anode and the cathode, The light-emitting layer has an organic compound having an anthracene skeleton, A light-emitting device having an organic compound represented by structural formula (100), structural formula (101), structural formula (102), structural formula (135), structural formula (147), or structural formula (175) between the light-emitting layer and the cathode. 【Transformation 6】

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