Mitsubishi Chemical Corporation

Kazuhiro Nagayama

Takashi Oya

Koichiro Iida

Hideki Gorohmaru

Kazuki Okabe

Koichi Ishibashi

Hideji Komatsu

Oki Iemura

Wataru Shimizu

Tomomi Okamoto

Ichiro Imada

Yoshiko Kajiyama

Akira Migita

Mayuko Nara

Itsumi Nishio

Iida Koichiro

Ishibashi Koichi

An iridium complex compound represented by formula (5): where in formula (5), Ir represents an iridium atom, Rto Reach independently represent a hydrogen atom or a substituent, adjacent Rto Rare optionally bonded together to form a ring, Rto Reach independently represent a hydrogen atom or a substituent, adjacent Rto Rare optionally bonded together to form a ring, X represents a bidentate ligand, m represents an integer of 1 to 3, and at least one of R, R, R, and Rrepresents a substituent other than a hydrogen atom.

Iridium complex compound

An iridium complex compound denoted by a formula (1) below. A ring Cyrepresents a monocyclic or fused aromatic ring or a monocyclic or fused heteroaromatic ring, which includes carbon atoms Cand C. A ring Cyrepresents a monocyclic or fused heteroaromatic ring, which includes carbon atom Cand a nitrogen atom N. Each of Rand Rrepresents a hydrogen atom or a substituent. At least one of Rand Ris a substituent denoted by a formula (2) below or a substituent further substituted with a substituent denoted by a formula (2) below.

Iridium complex compound, composition containing the compound and solvent, organic electroluminescent element containing the compound, display device, and illumination device

The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.

Iridium complex compound, and composition, organic electroluminescent element, display device, and lighting device each containing the compound

An iridium complex compound of formula (10): 

Provided is an iridium complex compound represented by formula (1) below.  

The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator. The present invention relates to an iridium complex compound represented by the following formula (1), which contains a phenyl(iso)quinoline or phenylquinazoline ligand and a phenylazole ligand:Ir(L)(L)(L)&#x2003;&#x2003;(1)

Iridium complex compound, process for producing the compound, composition including the compound, organic electroluminescent element, display device, and illuminator

The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group &#x3b1; for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group &#x3b1; comprises: a compound &#x3b1;1; and another compound &#x3b1;n satisfying a specific condition.

Composition for organic electroluminescent element, organic electroluminescent element, display and lighting

The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.

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Kanagawa, Japan

Kazuhiro Nagayama