期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 45, 页码 16199-16207出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc02180j
关键词
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资金
- Swiss National Science Foundation [200020-178808]
- 111 project [90002-18011002]
- Swiss National Science Foundation (SNF) [200020_178808] Funding Source: Swiss National Science Foundation (SNF)
The study presents the design and synthesis of a easily accessible axial chirality-inducing framework for a chromophore, which was fully characterized and resolved using various analytical techniques. This simple yet potent framework shows promise in enriching the structural diversity of chiral materials.
We report the design of a synthetically easy accessible axial chirality-inducing framework for a chromophore of choice. The scaffold consists of two basic para-phenylene-ethynylene backbones separated by laterally placed corner units. Substitution with an inherently achiral chromophore at the 2 and 5 positions of the central phenylene excitonically couples the chromophore associated transition and thereby results in chiroptical properties. Using 6-methoxynaphthalene as a model chromophore, we present the synthesis, structural analysis and spectroscopic investigation of the framework. The chiral framework was synthesized in three straightforward synthetic steps and fully characterized. The obtained racemic compounds were resolved using HPLC and assignment of the absolute configuration was performed using the exciton chirality method, crystallography and DFT calculations. This simple yet potent framework might prove useful to enrich the structural diversity of chiral materials.
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