JP2009221180A - 有機発光素子用の縮合環芳香族化合物及びそれを有する有機発光素子 - Google Patents
有機発光素子用の縮合環芳香族化合物及びそれを有する有機発光素子 Download PDFInfo
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- JP2009221180A JP2009221180A JP2008072932A JP2008072932A JP2009221180A JP 2009221180 A JP2009221180 A JP 2009221180A JP 2008072932 A JP2008072932 A JP 2008072932A JP 2008072932 A JP2008072932 A JP 2008072932A JP 2009221180 A JP2009221180 A JP 2009221180A
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- ZEEBGORNQSEQBE-UHFFFAOYSA-N [2-(3-phenylphenoxy)-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound C1(=CC(=CC=C1)OC1=NC(=CC(=C1)CN)C(F)(F)F)C1=CC=CC=C1 ZEEBGORNQSEQBE-UHFFFAOYSA-N 0.000 description 3
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Images
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-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
- C07C25/18—Polycyclic aromatic halogenated hydrocarbons
- C07C25/22—Polycyclic aromatic halogenated hydrocarbons with condensed rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/62—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with more than three condensed rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
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Abstract
Description
一般式[1]で示される縮合環芳香族化合物は、例えば、下記の合成ルート1に示すように、ジブロモクリセン誘導体と2−ヒドロキシフェニルボロン酸の誘導体あるいはブロモクロロヨードベンゼンの誘導体を原料に合成することができる。ただし、本発明はこれに限定されるものではない。
また、一般式[1]で示される縮合環芳香族化合物は、例えば、下記の合成ルート2に示すように、ジブロモクリセン誘導体とブロモクロロヨードベンゼンの誘導体を原料に合成することもできる。
また、一般式[1]で示される縮合環芳香族化合物は、例えば、下記の合成ルート3に示すように、ジブロモクリセン誘導体を原料に合成することもできる。
1.発光層内での電子・ホールの輸送。
2.ホストの励起子生成。
3.ホスト分子間の励起エネルギー伝達。
4.ホストからゲストへの励起エネルギー移動。
300mlナスフラスコに以下に示す試薬、溶媒を仕込んだ。
化合物1−1:1.3g(4.05mmol)
化合物1−2:1.22g(8.90mmol)
テトラキストリフェニルホスフィンパラジウム(0):519mg(0.45mmol)
トルエン:100ml
エタノール:50ml
2M−炭酸ナトリウム水溶液:20ml
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−3:1.3g(3.15mmol)
クロロホルム:100ml
トリエチルアミン:2ml
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−4:270mg(0.4mmol)
LiCl:100mg(2.4mmol)
1,8−ジアザビシクロ[5.4.0]7−ウンデセン:146mg(0.96mmol)
ビストリフェニルホスフィンパラジウム(II)ジクロライド:40mg(0.04mmol)
ジメチルホルムアミド:50ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が376.4であることを確認し、例示化合物A−1を同定した。
NMR測定によりこの例示化合物A−1の構造を確認した。
DSC示差走査熱量分析法により、例示化合物A−1の融点が378℃であることを確認した。
溶液状態における例示化合物A−1の発光スペクトルを測定した。発光スペクトルの測定にあたり、予め分光光度計U−3010(日立分光製)を使用して、例示化合物A−1のトルエン溶液(1×10-5mol/l)の吸収スペクトルを測定した。吸収スペクトルを測定した後、分光蛍光光度計F−4500(日立分光製)を使用して、例示化合物A−1のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)を測定した。このとき、吸収スペクトル測定の結果から励起波長を340nmとした。測定の結果、図6に示すPLスペクトルが得られた。図6に示すPLスペクトルより、例示化合物A−1の最大発光波長の第1ピーク、第2ピークはそれぞれ436nm、461nmであり良好な青色発光を示すことがわかった。
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が488.6であることを確認し、例示化合物C−6を同定した。
NMR測定により例示化合物C−6の構造を確認した。
DSC示差走査熱量分析法により、例示化合物C−6の融点が459℃であることを確認した。
溶液状態における例示化合物C−6の,トルエン溶液(1×10-5mol/l)の吸収スペクトルを測定した。吸収スペクトルを測定した後、例示化合物C−6のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)を測定した。このとき、吸収スペクトル測定の結果から励起波長を355nmとした。測定の結果、図7に示すPLスペクトルが得られた。図7に示すPLスペクトルより、例示化合物C−6の最大発光波長の第1ピーク、第2ピークはそれぞれ446nm、472nmであり良好な青色発光を示すことがわかった。
300mlナスフラスコに以下に示す試薬、溶媒を仕込んだ。
化合物1−1:2.5g(6.48mmol)
4,4,5,5−テトラメチル−1,3,2−ジオキサボロラン:5.63ml(38.8mmol)
[1,3−ビス(ジフェニルフォスフィノ)プロパン]ジクロロニッケル(II):325mg(0.65mmol)
トルエン:100ml
トルエチルアミン:30ml
300mlナスフラスコに以下に示す試薬、溶媒を仕込んだ。
化合物1−6:2.0g(4.16mmol)
化合物1−7:2.7g(8.5mmol)
テトラキストリフェニルホスフィンパラジウム(0):485mg(0.42mmol)
トルエン:100ml
エタノール:50ml
2M−炭酸ナトリウム水溶液:20ml
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−8:1.5g(2.47mmol)
LiCl:636mg(15.0mmol)
1,8−ジアザビシクロ[5.4.0]7−ウンデセン:943mg(6.20mmol)
ビストリフェニルホスフィンパラジウム(II)ジクロライド:40mg(0.24mmol)
ジメチルホルムアミド:150ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が445.3であることを確認し、化合物1−9を同定した。
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−9:500mg(1.12mmol)
化合物1−10:100mg(2.4mmol)
酢酸パラジウム(II):75mg(0.33mmol)
2−ジシクロヘキシルフォスフィノ−2’,6’−ジメトキシビフェニル:410mg(0.99mmol)
リン酸三カリウム:713mg(3.36mmol)
トルエン:50ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりそれぞれ、M+が584.7及び480.6であることを確認し、例示化合物G−14、G−19を同定した。
NMR測定により例示化合物G−14の構造を確認した。
実施例1と同様に発光特性の測定を行った。具体的には、例示化合物G−14及びG−19のトルエン溶液(1×10-5mol/l)の吸収スペクトルをそれぞれ測定した。吸収スペクトルを測定した後、例示化合物G−14及びG−19のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)をそれぞれ測定した。このとき、吸収スペクトル測定の結果から励起波長をいずれも340nmとした。測定の結果、図8(G−14)及び図9(G−19)に示すPLスペクトルが得られた。図8に示すPLスペクトルより、例示化合物G−14の最大発光波長の第1ピーク、第2ピークはそれぞれ444nm、470nmであり青色発光を示すことがわかった。また、図9に示すPLスペクトルより、例示化合物G−19の最大発光波長の第1ピーク、第2ピークはそれぞれ440nm、467nmであり青色発光を示すことがわかった。
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が656.8であることを確認し、例示化合物G−18を同定した。
NMR測定によりこの化合物の構造を確認した。
実施例1と同様に発光特性の測定を行った。具体的には、例示化合物G−18のトルエン溶液(1×10-5mol/l)の吸収スペクトルを測定した。吸収スペクトルを測定した後、例示化合物G−18のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)を測定した。このとき、吸収スペクトル測定の結果から励起波長を355nmとした。測定の結果、図10に示すPLスペクトルが得られた。図10に示すPLスペクトルより、例示化合物G−18の最大発光波長の第1ピーク、第2ピークはそれぞれ442nm、469nmであり良好な青色発光を示すことがわかった。
300mlナスフラスコに以下に示す試薬、溶媒を仕込んだ。
化合物1−1:5.0g(13.0mmol)
アセト酢酸エチル:6.74g(51.8mmol)
リン酸三カリウム:16.5g(77.7mmol)
酢酸パラジウム(II):116mg(0.52mmol)
2−(ジターシャルブチルフォスフィノ)−2’−メチルビフェニル:324mg(1.04mmol)
トルエン:100ml
エタノール:15ml
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−12:3.76g(89.6mmol)
ジオキサン:30ml
水酸化リチウム・1水和物:3.76g(89.6mmol)
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−13:2.87g(6.36mmol)
塩化チオニル:50ml
ジメチルホルムアミド:300μl
以下に示す試薬、溶媒等をナスフラスコに仕込んだ。
化合物1−15:1.2g(3.89mmol)
ベンゼンセレン酸無水物:4.4g(8.56mmol)
クロロベンゼン:60ml
ナスフラスコに以下に示す試薬、溶媒を仕込んだ。
化合物1−16:37mg(0.0046mmol)
化合物1−17:40mg(0.0092mmol)
エタノール:2ml
トルエン:0.4ml
6N−水酸化カリウム:300μl
オートクレーブに以下に示す試薬、溶媒、アセチレンガスを入れ密封した。190℃で24時間攪拌した。
化合物1−18:200mg(0.176mmol)
ジクロロエタン:4ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が1129.68であることを確認し、例示化合物G−22を同定した。
NMR測定により例示化合物G−22の構造を確認した。
実施例1と同様に発光特性の測定を行った。具体的には、例示化合物G−22のトルエン溶液(1×10-5mol/l)の吸収スペクトルを測定した。吸収スペクトルを測定した後、例示化合物G−22のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)を測定した。このとき、吸収スペクトル測定の結果から励起波長を355nmとした。測定の結果、図11に示すPLスペクトルが得られた。図11に示すPLスペクトルより、例示化合物G−22の最大発光波長の第1ピーク、第2ピークはそれぞれ458nm、486nmであり良好な青色発光を示すことがわかった。
化合物1−19:500mg(0.603mmol)
LiCl:76mg(1.81mmol)
1,8−ジアザビシクロ[5.4.0]7−ウンデセン:918mg(6.03mmol)
酢酸パラジウム:13.5mg(0.0603mmol)
2−ジシクロヘキシルフォスフィノ−2’,6’−ジメトキシビフェニル:56.8mg(0.133mmol)
ジメチルホルムアミド:30ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が528.6であることを確認し、例示化合物G−24を同定した。
500mlの三ツ口フラスコに、以下に示す試薬、溶媒等を仕込んだ。
クリセン:20.0g(87.6mmol)
塩化アルミニウム:46.7g(350mmol)
ジクロロメタン:400ml
200mlの三ツ口フラスコに、以下に示す試薬、溶媒等を仕込んだ。
化合物1−20:2.01g(7.10mmol)
化合物1−21:1.50g(7.13mmol)
エタノール:100ml
200mlの三ツ口フラスコに、以下に示す試薬、溶媒等を仕込んだ。
化合物1−22:3.00g(6.58mmol)
2,5−ノルボルナジエン:4.97g(54mmol)
無水酢酸:40ml
100mlの三ツ口フラスコに、以下に示す試薬、溶媒等を仕込んだ。
化合物1−23:1.00g(2.20mmol)
塩化アルミニウム:1.06g(7.92mmol)
ジクロロメタン:50ml
200mlの三ツ口フラスコに、以下に示す試薬、溶媒を仕込んだ。
化合物1−24:0.890g(1.75mmol)
化合物1−25:0.855g(1.97mmol)
エタノール:100ml
トルエン:10ml
次に、反応溶液を窒素雰囲気下室温で攪拌しながら、水酸化カリウム1.11gを溶解した水溶液5mlを滴下した。次に、反応溶液を75℃に昇温した後、この温度で2時間30分攪拌した。次に、反応溶液を冷却した後、析出した固体を濾別し、乾燥することにより化合物1−26を緑色粉末として0.49g(収率31%)得た。
200mlの三ツ口フラスコに、以下に示す試薬、溶媒を仕込んだ。
化合物1−26:0.49g(0.541mmol)
2,5−ノルボルナジエン:4.97g(54mmol)
無水酢酸:40ml
MALDI−TOF−MAS(マトリックス支援イオン化−飛行時間型質量分析)によりM+が905.5であることを確認し、例示化合物G−20を同定した。
NMR測定により例示化合物G−20の構造を確認した。
1H−NMR(CDCl3,400MHz) σ(ppm):8.35(s,1H),8.00(s,1H),7.81(dd,2H,J=8.4Hz,J=10.4Hz),7.76−7.73(m,3H),7.69−7.64(m,5H),7.56−7.50(m,8H),7.45−7.30(m,7H),7.22(d,1H,J=7.2Hz),1.42(s,18H),1.40(s,18H)
実施例1と同様に発光特性の測定を行った。具体的には、例示化合物G−20のトルエン溶液(1×10-5mol/l)の吸収スペクトルを測定した。吸収スペクトルを測定した後、例示化合物G−20のトルエン溶液(1×10-5mol/l)の発光スペクトル(PLスペクトル)を測定した。このとき、吸収スペクトル測定の結果から励起波長を355nmとした。測定の結果、図12に示すPLスペクトルが得られた。図12に示すPLスペクトルより、例示化合物G−20の最大発光波長の第1ピーク、第2ピークはそれぞれ456nm、482nmであり良好な青色発光を示すことがわかった。
本実施例では、図3で示される有機発光素子を作製した。まずガラス基板(基板1)上に膜厚100nmで酸化錫インジウム(ITO)(陽極2)をパターニングしてITO電極付きガラス基板を作製した。次に、このITO電極付きガラス基板上に、有機化合物からなる層と陰極を抵抗加熱による真空蒸着で連続成膜した。具体的には、まずホール輸送層5として、下記に示す化合物2を膜厚20nmで成膜した。次に、発光層3として、ホストである下記に示される化合物3とゲストである例示化合物A−1を、化合物3に対して例示化合物A−1の含有量が1重量%となるように共蒸着した。このとき発光層3の膜厚を30nmとした。次に、電子輸送層6として、下記に示す化合物4を膜厚30nmで製膜した。次にKFを膜厚1nmで製膜し、最後にAlを膜厚100nmで製膜した。ここでKF及びAlは、陰極4として機能する。
実施例7と同様の方法により、例示化合物C−6を構成材料として含む有機発光素子の評価を行った。具体的には、実施例8において、発光層3のゲストとして例示化合物A−1を例示化合物C−6に代える他は、実施例8と同じ条件で素子を作製した。
実施例7と同様の方法により、例示化合物G−14を構成材料として含む有機発光素子の評価を行った。具体的には、実施例7において、発光層3のゲストとして例示化合物A−1を例示化合物G−14に代える他は、実施例7と同じ条件で素子を作製した。
実施例7と同様の方法により、例示化合物G−18を構成材料として含む有機発光素子の評価を行った。具体的には、実施例7において、発光層3のゲストとして例示化合物A−1を例示化合物G−18に変える他は、実施例7と同じ条件で素子を作製した。
実施例8と同様の方法により、例示化合物G−20を構成材料として含む有機発光素子の評価を行った。具体的には、実施例8において、発光層3のゲストとして例示化合物A−1を例示化合物G−20に変える他は、実施例8と同じ条件で素子を作製した。
2 陽極
3 発光層
4 陰極
5 ホール輸送層
6 電子輸送層
7 ホール注入層
8 ホール/エキシトンブロッキング層
10,20,30,40,50 有機発光素子
Claims (3)
- 陽極と陰極と、
該陽極と該陰極との間に挟持される有機化合物からなる層とから構成され、
該有機化合物からなる層が、請求項1に記載の縮合環芳香族化合物を含有する有機発光素子。 - 前記縮合環芳香族化合物を含有する前記有機化合物からなる層が発光層である請求項2に記載の有機発光素子。
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JP2011231086A (ja) * | 2010-04-30 | 2011-11-17 | Canon Inc | 新規有機化合物およびそれを有する有機発光素子 |
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JP5414190B2 (ja) * | 2007-04-02 | 2014-02-12 | キヤノン株式会社 | 有機発光素子 |
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JP7218261B2 (ja) | 2019-09-05 | 2023-02-06 | キヤノン株式会社 | 有機化合物及び有機発光素子 |
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WO2008120808A1 (en) | 2008-10-09 |
KR20090126244A (ko) | 2009-12-08 |
US20110147731A1 (en) | 2011-06-23 |
JP5414190B2 (ja) | 2014-02-12 |
RU2009140296A (ru) | 2011-05-10 |
KR101124889B1 (ko) | 2012-04-12 |
US20100026171A1 (en) | 2010-02-04 |
RU2434836C2 (ru) | 2011-11-27 |
US7919198B2 (en) | 2011-04-05 |
EP2074075A4 (en) | 2012-11-07 |
EP2074075A1 (en) | 2009-07-01 |
BRPI0809010A2 (pt) | 2014-09-16 |
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