Alkyl-substituted bis(4-((9<i>H</i>-fluoren-9-ylidene)methyl)phenyl)thiophenes: weakening of intermolecular interactions and additive-assisted crystallization
作者:Alina A. Sonina、Christina S. Becker、Anatoly D. Kuimov、Inna K. Shundrina、Vladislav Yu. Komarov、Maxim S. Kazantsev
DOI:10.1039/d0ce01794a
日期:——
solution and a PL QY of 5% for C2-BFMPT and 2% for C8-BFMPT (form II) crystals was demonstrated. The cooling of the C8-BFMPT form II resulted in 10-fold increase of PL QY. The introduction of alkyl-substituents and additive-assisted crystallization are highlighted as powerful tools for the control of crystal packing, morphology, polymorphism and the optical performance of AIE-materials.
Proper shielding: Encapsulatedoligothiophenes for the investigation of single‐molecule conductance are described. UV/Vis/NIR measurements of the oxidized species show the absence of intermolecular interactions between the conjugated backbones. The conductance of a single‐molecule junction was measured by modified STM techniques (see picture), and the decay constant β was determined to be 1.9 nm−1
适当的屏蔽:描述了用于研究单分子电导的封装的寡聚噻吩。氧化物种的UV / Vis / NIR测量表明,共轭骨架之间没有分子间相互作用。单分子结的电导率通过改进的STM技术测量(参见图片),衰减常数β确定为1.9 nm -1。SMU =源计量单位。