Viewed: 03:56:38 in December 11, 2019

Synthesis, Functionalization, and Optical Properties of 1,2-Dihydro-1-aza-2-boraphenanthrene and Several Highly Fluorescent Derivatives (Abengózar, Alberto; García-Garcﾃｭa, Patricia; Sucunza, David; Sampedro, Diego; Pérez-Redondo, Adri´n; Vaquero, Juan J.)
Org. Lett. 2019, 21 (8), 2550−2554.

Keywords: B; N; phenanthrene; DMSO

フェナントレン骨格の炭素原子が窒素原子とホウ素原子に置き換わった化合物の合成と光物性に関する論文のようです。

合成の出発物質はナフタレン骨格にビニル基とブロモ基とを持つ化合物で、アミノ基に置換したりBCl₃と反応させたりしてターゲットの化合物に持って行っている模様。合成法は単一ではなく、置換基に応じて適宜ルートを選択しているようです。硫酸アンモニウムと^tBuOKでアミノ基入れられるんですね。さすがナフタレン骨格というかなんというか。

ホウ素−窒素は単結合で、二重結合になっているものは扱っていない…のかな。

光物性ですが、要旨に書いてある通り発光効率はかなり高そうです。ソルバトクロミック特性はなさそうで、Supporting Informationを見た限りではDMSOのような高極性溶媒中でも高い発光効率を維持しています。類似のBNアントラセンと比較しても発光効率が高そうで、効率の高さをTDDFT計算から色々考察しているようです。オシレータ強度が高いのかな。

これまでに合成されてきた一連のBNアントラセンとの違いを知りたいので、読みたい論文に追加です。

 

Baylis−Hillman反応Bergman環化 [Doi 1]
Corey−Fuchs反応 [Doi 1]
Corey−Kim酸化 [Doi 1]
Hemetsbergerインドール合成 [Doi 1]
Ireland−Claisen転位 [Doi 1]
Kumada−Tamao−Corriu カップリング [Doi 1]
Nicholas反応 [Doi 1]
リボヌクレアーゼ分子の構造に関する研究
(Christian Boehmer Anfinsen, Stanford Moore, William Howard Stein)
札幌オリンピック
グアム島で元日本陸軍兵士横井庄一発見
小僧寿し本部設立
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似鳥家具店(ニトリ)設立
モスバーガーの第一号実験店舗が開店
山陽新幹線・新大阪駅−岡山駅間開業
高松塚古墳で極彩色壁画の発見
アメリカから日本へ沖縄返還、沖縄県発足
労働安全衛生法施行
「日本列島改造論」発表
ウォーターゲート事件
ポンドの変動相場制移行
最高裁判所で日照権が初めて認められる判決
ハイセイコーがデビュー
「シビック」発売(本田技研工業)
「ビッグコミックオリジナル」創刊(小学館)
「太陽にほえろ!」放送開始(日本テレビ)
ランドサット1号打ち上げ
「カシオミニ」発売(カシオ計算機)
「必殺仕掛人」放送開始(朝日放送)
「オセロ」発売(ツクダオリジナル)
自動車の初心者マークが制定
「すし太郎」発売(永谷園)
日本の鉄道開業100年
八丈島東方沖地震(M7.2)
昭和47年7月豪雨
「ゴッドファーザー」公開

 

ここの画像を使用しています。

久しぶりのシロクロ。

 

Just finished the calculations: 1′-hydroxy-2′-acetonaphthone https://t.co/YtzmXdEt9j pic.twitter.com/L4r6FRiTqD

— nanoniele (@nanoniele) April 26, 2019

 

　

 

無機−有機 三次元ナノ構造体の新設計法を開発
(東京大学)
http://www.t.u-tokyo.ac.jp/soe/press/setnws_201904241114166766041345.html

常識に反する酵素の基質認識メカニズムを解明
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http://www.riken.jp/pr/press/2019/20190426_1/

速報・常温常圧反応によるアンモニア合成の実現について
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この海の研究者には夢がある！
(海の研究者)
https://goto33.blog.so-net.ne.jp/2019-04-26

ディープラーニングにより精度97%で気候変動を予測する手法を開発
(京都大学)
http://www.kyoto-u.ac.jp/ja/research/research_results/2019/190426_1.html

地球の深部炭素のゲートキーパーとなる微生物活動を発見 沈み込み帯から表層に放出される炭素量を再評価
(東京工業大学)
https://www.titech.ac.jp/news/2019/044219.html

3次元放射光ナノイメージングとデータ科学の融合
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http://www.riken.jp/pr/press/2019/20190426_2/

東京理科大なら社会人でも働きながら建築士になれる！？
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