COMPOUND, LIGHT-EMITTING MATERIAL, AND LIGHT-EMITTING ELEMENT
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United States of America Patent
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Sep 5, 2024
app pub date -
Sep 24, 2021
filing date -
May 29, 2020
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Abstract
A compound represented by the following general formula is an excellent light emitting material. R1 to R5 each represent a hydrogen atom, a deuterium atom, or a substituent other than a cyano group, but one or more of R1 to R5 is an aryl group or a pyridyl group, two or more of R1 to R5 are donor groups, and one or more of them are a substituted ring-fused indol-1-yl group (the number of rings constituting the fused ring is 4 or more).
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