The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

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The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

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Pyrogallarene chelating and sequestering agents are disclosed. The chelating and sequestering agents may be used in a homogeneous environment or heterogeneous environment. In addition, chromogenic properties may be utilized to assess the chelation or sequestration of certain atoms.

Pyrogallarene chelating and sequestering agents are disclosed. The chelating and sequestering agents may be used in a homogeneous environment or heterogeneous environment. In addition, chromogenic properties may be utilized to assess the chelation or sequestration of certain atoms.

In an embodiment, a composition is provided that includes an indenofluorene moiety; an alkyl radical, an aryl radical, or a heteroaryl radical chemically bound to the indenofluorene moiety; and an electron donor moiety bound to the indenofluorene moiety. In another embodiment, a device is provided that includes compositions described herein. In another embodiment, a method of forming a donor-acceptor small molecule or a donor-acceptor copolymer is provided that includes forming an indenofluorene moiety; forming an electron donor moiety; and reacting the indenofluorene moiety with the electron donor moiety in a cross-coupling reaction.

In an embodiment, a composition is provided that includes an indenofluorene moiety; an alkyl radical, an aryl radical, or a heteroaryl radical chemically bound to the indenofluorene moiety; and an electron donor moiety bound to the indenofluorene moiety. In another embodiment, a device is provided that includes compositions described herein. In another embodiment, a method of forming a donor-acceptor small molecule or a donor-acceptor copolymer is provided that includes forming an indenofluorene moiety; forming an electron donor moiety; and reacting the indenofluorene moiety with the electron donor moiety in a cross-coupling reaction.

A composition containing an organic compound AB and an organic compound AA different from the organic compound AB. The organic compound AB is represented by the following formula (1) and has a fused polycyclic structure A with two or more rings and a ring structure B different from the fused polycyclic structure A. The organic compound AA has the fused polycyclic structure A and is represented by the following formula (2).

A-B (1)

AA).sub.n (2)

In formulae (1) and (2), each of the fused polycyclic structures A may have, as a substituent, a deuterium atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group.

A composition containing an organic compound AB and an organic compound AA different from the organic compound AB. The organic compound AB is represented by the following formula (1) and has a fused polycyclic structure A with two or more rings and a ring structure B different from the fused polycyclic structure A. The organic compound AA has the fused polycyclic structure A and is represented by the following formula (2).

A-B (1)

AA).sub.n (2)

In formulae (1) and (2), each of the fused polycyclic structures A may have, as a substituent, a deuterium atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group.

The present invention provides an organic light emitting device comprising a first electrode, at least one organic layer and a second electrode, laminated successively, in which at least one layer of the organic layer has a polycyclic aromatic hydrocarbon as a core and comprises at least one of a derivative in which a substituted or unsubstituted C.sub.2-30 cycloalkane, or a substituted or unsubstituted C.sub.5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core; and a new organic compound usable in the organic light emitting device. Furthermore, the present invention provides a charge carrier extracting, injecting or transporting material which has a polycyclic aromatic hydrocarbon as a core and comprises a derivative in which a substituted or unsubstituted C.sub.2-30 cycloalkane, or a substituted or unsubstituted C.sub.5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core.

The present disclosure discloses tribenzotriquinacene with an axial aryl group and a method for preparing the same. The triphenyltripentacene has a structure shown in formula (1):

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R.sub.1 and R.sub.2 are independently hydrogen, a C1-C12 alkyl group, a C1-C12 alkoxy group, a C1-C12 fluoroalkyl group, a C1-C12 fluorine-containing alkoxy group, a C1-C12 ester group, a halogen group, a nitro group, an amine group, a cyano group, or a hydroxy group.