Provided is a new composition of matter for boron containing organic molecules which can be used as hosts or emitters in OLED devices. The compound can have a structure of Formula I

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Provided is a new composition of matter for boron containing organic molecules which can be used as hosts or emitters in OLED devices. The compound can have a structure of Formula I

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A compound of Formula I: ##STR00001##
wherein: X.sup.1-X.sup.8 are each independently C or N, wherein two adjacent X.sup.1-X.sup.8 are carbon-fused to a structure of Formula II: ##STR00002## X.sup.9-X.sup.12 are each independently C or N; A.sup.1, A.sup.2, and A.sup.3 are each independently selected from the group consisting of O, S, Se, N, NR, CR, CRR′, SiR, SiRR′, GeR, and GeRR′, with at least one of A.sup.1 and A.sup.2 being N or NR; each occurrence of is independently a single bond or a double bond, wherein one occurrence of is a single bond and one occurrence of is a double bond; each of R.sup.A, R.sup.B, and R.sup.c independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of occurrence R, R′, R.sup.A, R.sup.B, and R.sup.C is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, with at least one of R, R′, R.sup.A, R.sup.B, and R.sup.C comprising a group of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, or Formula IX: ##STR00003## ##STR00004## each occurrence of Y.sup.1, Y.sup.2, and Y.sup.3 is independently absent, O, S, Se, NR, CRR′, SiRR′, or GeRR′; each occurrence of Ar.sup.1, and Ar.sup.2 is independently an optionally substituted aryl group or an optionally substituted heteroaryl group, wherein Ar.sup.1 and Ar.sup.2 are optionally joined or fused together to form a ring; each occurrence of X.sup.13-X.sup.20 is independently C or N, with the proviso that at least one of X.sup.13-X.sup.20 is N; each occurrence of A.sup.4 is selected from the group consisting of O, S, Se, NR, CRR′, SiRR′, and GeRR′; each occurrence of R.sup.X independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each occurrence of R.sup.X is in

A compound of Formula I: ##STR00001##
wherein: X.sup.1-X.sup.8 are each independently C or N, wherein two adjacent X.sup.1-X.sup.8 are carbon-fused to a structure of Formula II: ##STR00002## X.sup.9-X.sup.12 are each independently C or N; A.sup.1, A.sup.2, and A.sup.3 are each independently selected from the group consisting of O, S, Se, N, NR, CR, CRR′, SiR, SiRR′, GeR, and GeRR′, with at least one of A.sup.1 and A.sup.2 being N or NR; each occurrence of is independently a single bond or a double bond, wherein one occurrence of is a single bond and one occurrence of is a double bond; each of R.sup.A, R.sup.B, and R.sup.c independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of occurrence R, R′, R.sup.A, R.sup.B, and R.sup.C is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, with at least one of R, R′, R.sup.A, R.sup.B, and R.sup.C comprising a group of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, or Formula IX: ##STR00003## ##STR00004## each occurrence of Y.sup.1, Y.sup.2, and Y.sup.3 is independently absent, O, S, Se, NR, CRR′, SiRR′, or GeRR′; each occurrence of Ar.sup.1, and Ar.sup.2 is independently an optionally substituted aryl group or an optionally substituted heteroaryl group, wherein Ar.sup.1 and Ar.sup.2 are optionally joined or fused together to form a ring; each occurrence of X.sup.13-X.sup.20 is independently C or N, with the proviso that at least one of X.sup.13-X.sup.20 is N; each occurrence of A.sup.4 is selected from the group consisting of O, S, Se, NR, CRR′, SiRR′, and GeRR′; each occurrence of R.sup.X independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each occurrence of R.sup.X is in

A light emitting element includes a polycyclic compound having a B-N-B structure and including a specific substituent in an emission layer, thereby showing high efficiency and long-life characteristics.

Embodiments provide a polycyclic compound and a light emitting element that includes the polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes the polycyclic compound, which is represented by Formula 1. Formula 1 is defined in the specification. The light emitting element exhibits a long service life.

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Embodiments provide a condensed cyclic compound, a light-emitting device including the condensed cyclic compound, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer; and the condensed cyclic compound. The condensed cyclic compound is represented by Formula 1:

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The description of Formula 1 is provided in the specification.

Provided is a light emitting element includes a polycyclic compound in which an electron donor substituent, which may increase the photoluminescence quantum yield (PLQY) and oscillator strength (f), is introduced at the para-position of a boron atom, thereby exhibiting high efficiency and long service life characteristics.

Methods of treating anti-inflammatory conditions through the use of boron-containing small molecules are disclosed.

A light emitting diode of an embodiment includes a first electrode, a second electrode, and at least one functional layer between the first electrode and the second electrode, wherein the at least one functional layer includes at least one selected from among a polycyclic compound represented by Formula 1 and a compound represented by Formula E-1.

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