烯添加的西二醇作为奇拉尔发射剂
Kévin Martin1, Tal Aharon2,3, Maurizio Mastropasqua Talamo1
1Univ Angers, CNRS, MOLTECH-Anjou SFR MATRIX, F-49000, Angers, France.
Chemistry (Weinheim an der Bergstrasse, Germany)
|May 21, 2024
概括
新的二醇 (BTD) 化合物与烯衍生物具有高排放量子产量和循环极化发光 (CPL). 这些排放性材料显示出先进光学应用的潜力.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 光物理学的光学物理学
背景情况:
- 甲 (BTD) 衍生物以其光电子特性而闻名.
- 烯是具有独特结构和光物理特征的性多环芳.
- 将BTD与基单元结合起来,可以产生新的功能性材料.
研究的目的:
- 为了合成和表征一系列的4,7-bis(aryl) 替代的西醇 (BTD) 化合物,其中包含烯单元.
- 研究这些新型化合物的光物理性质,包括辐射量子产量和手术行为.
- 探索这些BTD-联体作为发射材料和奇拉性探测器的潜力.
主要方法:
- 通过3,6-bis(pinacolyl-borane) -BTD与烯-烯前体的双合苏子基合成.
- 单晶X射线衍射用于结构阐明.
- 用光谱测量 (UV-Vis吸收,光发射) 来确定光物理性质.
- 石头光学光谱学 (圆极化发光 - - CPL) 来评估反体性质.
- 密度函数理论 (DFT) 计算用于电子结构和形状分析.
主要成果:
- 成功合成了一系列同类的BTD化合物,其中包括bis([4]helicene),bis([5]helicene) 和bis([6]helicene) 部分.
- 化合物在溶液中表现出高光量子产量 (50-91%).
- 单晶X射线结构揭示了同一个bis([4]) 分子内的 (M) 和 (P) 螺旋体的存在.
- (M,M) -和 (P,P) -BTD-bis([6]) 在溶液 (glum ≈ 1.7×10-3) 和固体状态 (glum ≈ 1.2×10-3) 中显示出显著的CPL活性.
- DFT计算证实了绝对配置的赋值,并阐明了从螺旋体到BTD的电荷转移过渡.
结论:
- 合成的BTD-化合物具有高排放性,并具有可调整的手术特征.
- 结合BTD和烯单元,为开发先进的性发光材料提供了一个有前途的平台.
- 这些材料显示出在需要循环偏光发射的领域的应用潜力,例如有机电子和合传感.
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