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题名: A method for controlling the synthesis of stable twisted two-dimensional conjugated molecules
作者: Li, Yongjun1; Jia, Zhiyu1; Xiao, Shengqiang2; Liu, Huibiao1; Li, Yuliang1
刊名: NATURE COMMUNICATIONS
发表日期: 2016-05-01
卷: 7
收录类别: SCI
英文摘要: Thermodynamic stabilization (pi-electron delocalization through effective conjugation) and kinetic stabilization (blocking the most-reactive sites) are important considerations when designing stable polycyclic aromatic hydrocarbons displaying tunable optoelectronic properties. Here, we demonstrate an efficient method for preparing a series of stable two-dimensional (2D) twisted dibenzoterrylene-acenes. We investigated their electronic structures and geometries in the ground state through various experiments assisted by calculations using density functional theory. We find that the length of the acene has a clear effect on the photophysical, electrochemical, and magnetic properties. These molecules exhibit tunable ground-state structures, in which a stable open-shell quintet tetraradical can be transferred to triplet diradicals. Such compounds are promising candidates for use in nonlinear optics, field effect transistors and organic spintronics; furthermore, they may enable broader applications of 2D small organic molecules in high-performance electronic and optical devices.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36098
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
2.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
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