948899-36-3Relevant academic research and scientific papers
Color Fine-Tuning of Optical Materials Through Rational Design
Holzer, Brigitte,Bintinger, Johannes,Lumpi, Daniel,Choi, Christopher,Kim, Youngwan,St?ger, Berthold,Hametner, Christian,Marchetti-Deschmann, Martina,Plasser, Felix,Horkel, Ernst,Kymissis, Ioannis,Fr?hlich, Johannes
, p. 549 - 563 (2017/03/13)
We report on the feasibility for color fine-tuning of optical materials using rational design principles based on chemical reasoning. For this purpose, a modular framework for the construction of symmetrical cap-linker-cap compounds, using triarylamine caps and oligothiophene linkers, is applied. The chosen structural scaffolds are heavily used in recent industrial applications and provide five possibilities for altering their electronic and steric properties: electron donor/acceptor groups, planarization/deplanarization, and modulation of the π-conjugation length. Permutation of the used building blocks leads to a set of 54 different molecules, out of which 32 are synthesized and characterized in solution as well as in example fabricated OLED devices. This setup allows for color fine-tuning in the range of 412 nm to 540 nm with typical steps of 4 nm. In addition, to further benefit from the large experimental data set the spectroscopic results are used to benchmark quantum chemical computations, which show excellent agreement thus highlighting the potential of these calculations to guide future syntheses.
Pd-catalyzed oxidative cross-coupling between two electron rich heteroarenes
He, Chun-Yang,Wang, Zhen,Wu, Cai-Zhi,Qing, Feng-Ling,Zhang, Xingang
, p. 3508 - 3513 (2013/11/19)
The transition-metal-catalyzed oxidative cross-coupling between two coupling partners with similar structure and electronic characteristics remains a challenge owing to difficulty in suppressing undesired homo-couplings. We herein report a Pd-catalyzed oxidative cross-coupling between two thiophenes under mild reaction conditions. This approach can also be extended to furans. Some notable advantages of this reaction lie in its synthetic simplicity with the omission of the toxic stannanes coupling partner and excellent functional-group compatibility. The features of this protocol make it an ideal strategy for the construction of a 2,2′-thiophene-thiophene linkage of interest in electronic and optoelectronic materials.
Functionalized oligothiophene-based heterocyclic aromatic fluorescent compounds with various donor-acceptor spacers and adjustable electronic properties: A theoretical and experimental perspective
Tao, Tao,Qian, Hui-Fen,Zhang, Kun,Geng, Jiao,Huang, Wei
, p. 7290 - 7299 (2013/08/23)
Syntheses, characterizations, optical, electrochemical, and thermal properties of a family of linear oligothiophene-based heterocyclic aromatic fluorescent compounds are described herein. They all have effective π-conjugated systems with D-π-D or A-π-A st
