Abstract: An oxygen-containing fused ring derivative represented by the following formula (1) wherein Ar1 is an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5):

Abstract: An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar1 to Ar4 is a heterocyclic group represented by the following formula (2) wherein X1 is an oxygen atom or a sulfur atom.

Abstract: A compound represented by the following formula (1). In the formula (1), at least one of Ar1 to Ar4 is a group represented by the following formula (2).

Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Abstract: An organic electroluminescence device having good emission efficiency is provided. The organic electroluminescence device includes an amine compound which includes a benzofluorene structure and an aryl group and/or a heteroaryl group, wherein the benzofluorene structure has a specific substituent at 9-position of the fluorene ring.

Abstract: A polymerizable monomer represented by the following formula (1) wherein at least one of Ar1 to Ar3 is substituted by a group represented by the following formula (2) and which is substituted by one or more groups comprising a polymerizable functional group. Ar1 to Ar3 are a substituted or unsubstituted aryl group having 6 to 40 ring carbon atoms, Ar6 is a substituted or unsubstituted aryl group having 6 to 40 ring carbon atoms and Ar4 and Ar5 are a substituted or unsubstituted arylene group having 6 to 40 ring carbon atoms.

Abstract: The present invention provides a compound having a fluoranthene skeleton represented by the formula (1); an organic electroluminescence device having plural organic thin film layers including a light-emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers contains the compound; and an electronic equipment provided with the organic electroluminescence device. The organic electroluminescence device realizes further lower voltage driving and has high emission efficiency. [In the formula (1), X1 to X10, L, R1 to R9, and n are as stated in the description.

Abstract: A novel carbazole derivative represented by formula (1) in which two or more groups each having a specific structure, such as a carbazolyl group, are bonded to two or more of 2-, 3- and 4-positions of the carbazole derivative is useful as a material for organic electroluminescence devices. A material for organic electroluminescence devices including the carbazole derivative, an organic electroluminescence device employing the carbazole derivative, and an electronic equipment are described. wherein at least two selected from B1 to B3 are represented by formula (2) and A, X1 to X4, L, n, Y, and R1 to R8 are as defined in claim 1.

Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Abstract: An organic electroluminescence device includes: an anode; a cathode; and a single- or multi-layer organic layer interposed between the anode and the cathode. The organic layer includes at least one emitting layer containing a dopant material represented by a formula below. In the formula, X1 to X5 each independently represent CR1 or a nitrogen atom, at least one of X1 to X5 is a nitrogen atom, L1 represents a divalent aromatic hydrocarbon group or a divalent heterocyclic group, A and B each independently represents a cyclic structure, at least one of the cyclic structure A and the cyclic structure B has a substituent, and R1 represents an aryl group, alkyl group or the like.

Abstract: An organic electroluminescence device includes: an anode; a cathode; and an organic layer interposed between the anode and the cathode, in which the organic layer includes an emitting layer and the emitting layer includes a compound represented by a formula (1) below and a compound represented by a formula (2) below. Az1 of the formula (1) below and Az2 of the formula (2) below are each an azine ring. Cz of the formula (1) below and HAr of the formula (2) below are each a nitrogen-containing heterocyclic ring.

Abstract: A compound of the invention is represented by a formula (1) below. In the formula (1), Cz is represented by a formula (1a) below and Az is represented by a formula (11) below.

Abstract: An anthracene derivative is represented by the following formula (1). In the formula (1), one of R11 to R20 is used to bond to L1, and is a single bond. The remainder of R11 to R20 that are not used to bond to L1 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 20 carbon atoms, or the like. L1 is a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon group including 6 to 50 ring carbon atoms, or the like. Z has a structure represented by the following formula (2). In the formula (2), one of R1, R3, and R4 is used to bond to L1, and is a single bond. The remainder of R1, R3, and R4 that are not used to bond to L1, R2, and R5 to R10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 20 carbon atoms, or the like.

Abstract: An aromatic amine derivative represented by the following formula (1): wherein at least one of R1 to R8 is a group other than a hydrogen atom, Ar1 to Ar4 are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

Abstract: An organic EL device with high emission efficiency, an electronic equipment including the organic EL device, and a compound providing the organic EL device are provided.

Abstract: A nitrogen-containing heterocyclic compound wherein a pyrrole ring, an aromatic ring and a 7-membered ring are fused one another, a material for organic electroluminescence device including the compound, and an organic electroluminescence device including the material.

Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer therebetween. The organic compound layer includes an emitting layer. The emitting layer includes a pyrene derivative represented by formula (1), such that a content of the pyrene derivative in the emitting layer is 50 to 100 wt %. Ar1 and Ar2 are independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms. X1 and X3 to X8 are a hydrogen atom. X2 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, provided that Ar1 or Ar2 is different from X2. In a case where any of Ar1, Ar2, and X2 is the aryl group having a substituent, the substituent is independently an alkyl group, a cycloalkyl group, an aryl group, a silyl group, or a cyano group.

Abstract: A material for an organic electroluminescence device including a compound represented by any of the formulas (1) to (3):

Abstract: An aromatic amine derivative represented by the following formula (1): wherein at least one of R1 to R8 is a group other than a hydrogen atom, Ar1 to Ar4 are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

Abstract: A material for an organic electroluminescence device represented by the following formula (I): wherein X1 to X8 are a nitrogen atom, CH, CHal or CRa; Az is a nitrogen-containing six-membered ring or a fused polycyclic group including a nitrogen-containing six-membered ring; W is an aromatic hydrocarbon group having 6 to 30 ring carbon atoms which is substituted by at least one cyano group or a heterocyclic group having 5 to 30 ring atoms which is substituted by at least one cyano group.