Compound containing 1, 3-diketone ligand, application of compound and organic electroluminescent device
A compound and ligand technology, applied in the field of organic electroluminescent devices, can solve the problems of low luminous efficiency and large efficiency roll-off, and achieve the effects of improving luminous efficiency, life expectancy, and phosphorescent quantum efficiency
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specific Embodiment approach 1-3
[0074] According to particularly preferred embodiments 1-3 , in Ir(L A )(L B ) 2 In the structure shown,
[0075] In formula (IA), R 1 , R 2 , R 3 , R 4 each independently selected from H, C 1- C 8 Alkyl, C 6- C 10 Aryl; or R 1 with R 2 combination of and R 3 with R 4 At least one combination of the combinations is ring-closed to form a 4-7 membered saturated ring;
[0076] In formula (IB), X is C or N,
[0077] Q ring is selected from substituted or unsubstituted benzene ring, substituted or unsubstituted quinoline ring, substituted or unsubstituted isoquinoline ring, substituted or unsubstituted naphthalene ring, substituted or unsubstituted phenanthrene ring, substituted or unsubstituted Substituted benzothiophene ring, substituted or unsubstituted benzofuran ring, substituted or unsubstituted indole ring, substituted or unsubstituted benzothiazole ring, substituted or unsubstituted benzoxazole ring, substituted or unsubstituted Substituted benzimidazole r...
specific Embodiment approach 1-4
[0082] According to particularly preferred embodiments 1-4 , in Ir(L A )(L B ) 2 In the structure shown,
[0083] In formula (IA), R 1 , R 2 , R 3 , R 4 each independently selected from H, methyl, ethyl, C 3 straight chain alkyl, C 3 branched chain alkyl, C 3 Cycloalkyl, C 4 straight chain alkyl, C 4 branched chain alkyl, C 4 Cycloalkyl, C 5 straight chain alkyl, C 5 branched chain alkyl, C 5 Cycloalkyl, C 6 straight chain alkyl, C 6 branched chain alkyl, C 6 Cycloalkyl, C 7 straight chain alkyl, C 7 branched chain alkyl, C 7 Cycloalkyl, C 8 straight chain alkyl, C 8 branched chain alkyl, C 8 Cycloalkyl, phenyl; or R 1 with R 2 combination of and R 3 with R 4 At least one combination of the combinations is ring-closed to form a 4-7 membered saturated ring;
[0084] In formula (IB), X is C or N,
[0085] Q ring is selected from substituted or unsubstituted benzene ring, substituted or unsubstituted quinoline ring, substituted or unsubstituted isoqu...
specific Embodiment approach 1-6
[0096] According to particularly preferred embodiments 1-6 , in Ir(L A )(L B ) 2 In the structure shown,
[0097] L A selected from the structures shown in claim 6; and
[0098] L B Selected from the structures shown in claim 7.
[0099] According to preferred embodiments 1-7 , Ir(L A )(L B ) 2 The structure shown is selected from the structures shown in claim 8.
[0100] The present invention has no special limitation on the preparation method of the compound containing 1,3-diketone ligand described in the aforementioned first aspect, and those skilled in the art can determine the appropriate reaction route according to the structural formula combined with known methods in the field of organic synthesis . The following sections of the present invention exemplarily provide several methods for preparing the compounds containing 1,3-diketone ligands described in the first aspect, which should not be understood by those skilled in the art to limit the present invent...
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