棒-线型邻菲罗啉铂(Ⅱ)配合物自组装磷光材料的研究
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- 英文论文题名：Phosphorescent Self-assembly based on Rod-coil Phenanthroline Platinum(Ⅱ) Complex
- 论文作者：向芸颉 ; 金武松
- 英文论文作者：Yunjie Xiang ; Wusong Jin ; College of Chemistry ; Chemical Engineering and Biotechnology ; Donghua University
- 年：2016
- 作者机构：东华大学化学化工与生物工程学院;
- 论文关键词：棒-线型 ; 邻菲罗啉 ; 自组装 ; 磷光材料 ; 响应性
- 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-第二十四分会：超分子组装与软物质材料
- 语种：中文
- 分类号：O641.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十四分会 ; 超分子组装与软物质材料
- 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：209k
- 原文格式：D
- 会议级别：全国
摘要
有机铂(Ⅱ)配合物可使原本禁阻的三线态发生跃迁,理论上具备优于一般有机发光分子的寿命长、发光效率高等特性,在光电、传感等领域有广阔应用前景。然而,平面四边形铂(Ⅱ)配合物易发生高浓度淬灭,导致其固态不发光或发光很弱,严重阻碍了其应用。我们设计合成含有不同亲水性侧链的棒-线型邻菲罗啉二氯铂(Ⅱ)配合物1-Pt和2-Pt,通过自组装方法使原本不发光的1-Pt分子在甲醇中以dimer的形式堆积排布形成规整的自组装膜,诱导其强烈的红色磷光发射;且1-Pt在基质上能形成大面积的自组装薄膜,对温度、酸及挥发性气体有多重刺激响应性能。而拥有较小侧链的分子2-Pt排布堆积形成另一种层状结构的自组装材料,发微弱的黄色磷光,无法拥有与1-Pt自组装薄膜所具备的多重刺激响应性。
Organic platinum(Ⅱ) complexes possess the characteristics different from the general organic light emitting molecules, such as long lifetime and higher luminescent efficiency, because that they are capable to break through the spin-forbidden of triplet exciton transition. However, the square planar platinum(Ⅱ) complexes ease to be quenched at high concentration and exhibit non-emission at solid state, which seriously hinders their applications. Rod-coil shaped amphiphilic bidentate dichloro(phenanthroline)platinum(Ⅱ) complexes 1-Pt and 2-Pt, which possess different hydrophilic lateral chains on one side of aromatic rod core, are synthesized. 1-Pt first forms dimers then arranges into well-defined two-dimensional(2D) films, with induced red emission, consisting of highly ordered molecular arrays both from methanol and on substrate. 2-Pt yields micrometer-sized rigid 2D sheets without formation of an initial dimer to emit weak yellow luminescence. The macroscopic film of 1-Pt on the substrate exhibits multi-stimuli responsiveness, which predicts its application in smart chemosensing devices and probes.
Organic platinum(Ⅱ) complexes possess the characteristics different from the general organic light emitting molecules, such as long lifetime and higher luminescent efficiency, because that they are capable to break through the spin-forbidden of triplet exciton transition. However, the square planar platinum(Ⅱ) complexes ease to be quenched at high concentration and exhibit non-emission at solid state, which seriously hinders their applications. Rod-coil shaped amphiphilic bidentate dichloro(phenanthroline)platinum(Ⅱ) complexes 1-Pt and 2-Pt, which possess different hydrophilic lateral chains on one side of aromatic rod core, are synthesized. 1-Pt first forms dimers then arranges into well-defined two-dimensional(2D) films, with induced red emission, consisting of highly ordered molecular arrays both from methanol and on substrate. 2-Pt yields micrometer-sized rigid 2D sheets without formation of an initial dimer to emit weak yellow luminescence. The macroscopic film of 1-Pt on the substrate exhibits multi-stimuli responsiveness, which predicts its application in smart chemosensing devices and probes.
引文
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