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Benzothiadiazole-based bolaamphiphiles: synthesis, self-assembly and white-light emissive properties

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Abstract

Novel benzothiadiazole-based bolaamphiphiles comprising a donor–acceptor–donor (thiophene–benzothiadiazole–thiophene) π-conjugated rod, two diol groups at the terminals and two alkyl chains at the lateral positions can self-assemble into square honeycomb LC phases and helical gel structures in organic solvents. The square columnar phases should have 4 molecules in each unit cell and 2 molecules in each cell wall with the c-parameter (intermolecular distance) varying from compound to compound. The UV-vis spectra of these red emissive BTD-based bolaamphiphiles covered almost the whole visible range with a relatively low band gap. Most interestingly, white light with CIE coordinates (0.30, 0.33) was obtained by doping this BTD-based bolaamphiphile with a blue emissive dithiophene bolaamphiphile and yellow-green emissive tetrathiophene bolaamphiphile.

Graphical abstract: Benzothiadiazole-based bolaamphiphiles: synthesis, self-assembly and white-light emissive properties

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Publication details

The article was received on 27 Sep 2018, accepted on 29 Dec 2018 and first published on 31 Dec 2018


Article type: Paper
DOI: 10.1039/C8TC04890H
Citation: J. Mater. Chem. C, 2019, Advance Article
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    Benzothiadiazole-based bolaamphiphiles: synthesis, self-assembly and white-light emissive properties

    Y. Xiao, R. Zhang, H. Gao, H. Zhao and X. Cheng, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C8TC04890H

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