A thermally activated delayed fluorescent (TADF) material is provided. The TADF material has a form in which an electron donating group and an electron withdrawing group are connected to benzene and the electron withdrawing group is position in an ortho position to the electron donating group.

A borole compound is represented by Formula 1: X.sub.11(R.sub.11).sub.b11. X.sub.11, R.sub.11, and b11 are as defined herein. An organic light-emitting device includes the borole compound. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes the borole compound.

A borole compound is represented by Formula 1: X.sub.11(R.sub.11).sub.b11. X.sub.11, R.sub.11, and b11 are as defined herein. An organic light-emitting device includes the borole compound. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes the borole compound.

This disclosure relates to use of cashew nut shell liquid (CNSL) phenolics in the manufacture of molecules having ESIPT character, wherein said molecules are UVA and/or UVB absorbers, and further wherein said molecules are formulated as protectants against UVA and/or UVB radiation. The disclosure extends to use of CNSL in the manufacture of compositions including molecules having ESIPT character for treating and/or preventing sunburn and/or preventing U.V. damage.

This disclosure relates to use of cashew nut shell liquid (CNSL) phenolics in the manufacture of molecules having ESIPT character, wherein said molecules are UVA and/or UVB absorbers, and further wherein said molecules are formulated as protectants against UVA and/or UVB radiation. The disclosure extends to use of CNSL in the manufacture of compositions including molecules having ESIPT character for treating and/or preventing sunburn and/or preventing U.V. damage.

An organic electroluminescence device includes an anode, a cathode, and an emitting layer provided between the anode and the cathode. The emitting layer contains a compound M3 represented by a formula (1-1) or (1-2) and a delayed fluorescent compound M2. The compound M3 and the compound M2 are mutually different in structure. A singlet energy S.sub.1(M3) of the compound M3 and a singlet energy S.sub.1(M2) of the compound M2 satisfy a relationship of S.sub.1(M3)>S.sub.1(M2). In the formulae (1-1) and (1-2), A is a group represented by a formula (11A) or the like, L.sub.1 and L.sub.2 are each independently a single bond or a substituted or unsubstituted arylene group, and Y.sub.1 is an oxygen atom or a sulfur atom.

##STR00001##

Provided are: a novel nucleating agent capable of imparting excellent transparency to synthetic resins; a synthetic resin composition containing the same; and a molded object of the synthetic resin composition. The nucleating agent contains at least one triazine compound represented by Formula (1), wherein Ar.sup.1, Ar.sup.2 and Ar.sup.3 each independently represent an unsubstituted phenyl group or a substituted phenyl group. In Formula (1), for example, the number of substituents of the substituted phenyl group is preferably 1, and Ar.sup.1, Ar.sup.2 and Ar.sup.3 are preferably all different groups. ##STR00001##

A compound of Chemical Formula 1:

##STR00001##

wherein: Ar1 is an aryl group having 6 to 60 carbon atoms that is substituted with one or more cyano groups, and is optionally further substituted with deuterium; Ar21 to Ar23 are the same as or different from each other, and are each independently hydrogen, deuterium, or a substituted or unsubstituted aryl group having 6 to 60 carbon atoms; and the other substituents are as defined in the specification; and an organic light emitting device including the same. The compound can be used as a material for an organic material layer of an organic light emitting device, and can be used as a material for a light emitting layer. An organic light emitting device including the compound of Chemical Formula 1 exhibits a low driving voltage, a high efficiency and/or a long service life compared to existing organic light emitting devices.

A compound of Chemical Formula 1:

##STR00001##

wherein: Ar1 is an aryl group having 6 to 60 carbon atoms that is substituted with one or more cyano groups, and is optionally further substituted with deuterium; Ar21 to Ar23 are the same as or different from each other, and are each independently hydrogen, deuterium, or a substituted or unsubstituted aryl group having 6 to 60 carbon atoms; and the other substituents are as defined in the specification; and an organic light emitting device including the same. The compound can be used as a material for an organic material layer of an organic light emitting device, and can be used as a material for a light emitting layer. An organic light emitting device including the compound of Chemical Formula 1 exhibits a low driving voltage, a high efficiency and/or a long service life compared to existing organic light emitting devices.