Time‐Dependent Emission Enhancement of the Ethynylpyrene‐<i>o</i>‐Carborane Dyad and Its Application as a Luminescent Color Sensor for Evaluating Water Contents in Organic Solvents

• 西野, 健太

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

• 越智, 純毅

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

• 田中, 一生

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

• 中條, 善樹

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

• Chujo, Yoshiki

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

書誌事項

タイトル別名

• Time-Dependent Emission Enhancement of the Ethynylpyrene-o-Carborane Dyad and Its Application as a Luminescent Color Sensor for Evaluating Water Contents in Organic Solvents
• Time-dependent emission enhancement of the etynylpyrene-o-carborane dyad and its application as a luminescent color sensor for evaluating water contents in organic solvents

抄録

The time‐dependent emission enhancement (TDEE) phenomena of the 1‐(o‐carboran‐1‐yl)ethynylpyrene dyad were reported. It was found that the emission intensity from the dyad increased in tetrahydrofuran (THF), acetone and dichloromethane with increasing incubation time. From the mechanistic studies, it was suggested that agglomeration of the dyad gradually proceeded in these media, followed by expression of excimer luminescence. Additionally, it was shown that the rates of TDEE of the dyad were sensitively accelerated in the presence of a trace amount of water. Based on this fact, a detection system for water contents in acetone was constructed. Before and after incubation for 96 h at room temperature, time courses of changes in optical properties were monitored. Finally, water contents in acetone can be estimated by the degrees of TDEE and emission color changes in the range from 0.1 wt % to 2.0 wt % and from 2.0 wt % to 20 wt %, respectively.

収録刊行物

• Chemistry - An Asian Journal

  Chemistry - An Asian Journal 14 (9), 1577-1581, 2019-05-02

  Wiley

キーワード

• aggregation-induced emission
• carboranes
• excimer
• luminescence
• water sensor

詳細情報

• CRID: 1050845763182154496
• NII論文ID: 120006623968
• ISSN: 18614728
• ISSN: 1861471X
• DOI: 10.1002/asia.201900396
• HANDLE: 2433/241082
• Web Site: https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fasia.201900396
• Web Site: https://onlinelibrary.wiley.com/doi/pdf/10.1002/asia.201900396
• Web Site: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/asia.201900396
• 本文言語コード: en
• 資料種別: journal article
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