具有推拉电子结构的乙硅烷桥联化合物的光物理性质研究:溶剂效应,温度依赖性以及不同聚集形态对光谱性质的影响
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- 英文论文题名：Photophysics of A novel Boron-Containing Disilane-Bridged Compound
- 论文作者：杨晨临 ; 李沙瑜 ; 杨国强
- 英文论文作者：Chenlin Yang ; Shayu Li ; Guoqiang Yang ; Institute of Chemistry ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院化学研究所;
- 论文关键词：乙硅烷桥联化合物 ; 推拉电子结构 ; 光物理
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：O627.41
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：303k
- 原文格式：D
- 会议级别：全国
摘要
本文设计与合成了一种新型具有推拉电子结构的乙硅烷桥联的化合物。该化合物的吸收位于紫外区,而在四氢呋喃中最大发射波长可达545nm。该化合物具有双发光,短波长处的发光来自三芳基硼部分的局域激发态,而长波长处的发光来自电荷转移态。不同溶剂以及温度对光谱均有影响。在水与四氢呋喃混合体系中,随着含水量的增加,光谱因溶剂极性和聚集形态的改变而发生变化。
A novel boron-containing disilane-bridged compound with pull-push architecture was designed and synthesized. Photophysics of the compound has been investigated. It was found that the absorption spectra lie in the UV region while its maximum of emission in THF reached up to 545 nm, which caused a large Stokes shift. Such large red-shift emissive state was attributed to TICT state. The effect of solvents and temperature on optical properties was also probed. The different extent of the aggregation of the compound in the THF-water system also can be revealed by their fluorescence spectra.
A novel boron-containing disilane-bridged compound with pull-push architecture was designed and synthesized. Photophysics of the compound has been investigated. It was found that the absorption spectra lie in the UV region while its maximum of emission in THF reached up to 545 nm, which caused a large Stokes shift. Such large red-shift emissive state was attributed to TICT state. The effect of solvents and temperature on optical properties was also probed. The different extent of the aggregation of the compound in the THF-water system also can be revealed by their fluorescence spectra.
引文
[1]Shimada,M.;Yamanoi,Y.;Matsushita,T.;Kondo,T.;Nishibori,E.;Hatakeyama,A.;Sugimoto,K.;Nishihara,H..J.Am.Chem.Soc.2015,137(3),1024-7.